Welcome, Guest: Register On Nairaland / LOGIN! / Trending / Recent / NewStats: 3,194,292 members, 7,954,166 topics. Date: Friday, 20 September 2024 at 01:32 PM |
Nairaland Forum / Nairaland / General / Education / Jamb Math Question That 'jammed' Most Students - Can You Solve It? (1783 Views)
See What Kenyan Student Did When He Was Given A Difficult Math Question In Exam / Hardest Math Question Ever. / 10 Causes Of Poor Academic Performance In School – Most Students Never Admit #8 (2) (3) (4)
Jamb Math Question That 'jammed' Most Students - Can You Solve It? by originalKsp(m): 12:11pm On Jul 28, 2016 |
Factorise the given expression
[ see solution http://samimath.com/q-a-factorization-2/]
|
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by Heromaniaa: 12:15pm On Jul 28, 2016 |
Do people still solve this things? |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by 4kings: 1:10pm On Jul 28, 2016 |
After equating d expression to zero: 3^2 = (x^2 - 3x - 1)^2 Removing squares: 3= (x^2 - 3x - 1) After opening bracket; 3+1 = x^2 -3x 4 = x^2 - 3x x^2 - 3x -4=0 Getting values for 3x dat is common to x^2 & -4 x^2 - 4x + x - 4 = 0 -:, x(x - 4) + 1(x-4) = 0 (x+1) = 0 & (x-4) = 0 Therefore: x = -1 x = 4 1 Like 1 Share |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by FarukuWadata12(m): 1:21pm On Jul 28, 2016 |
the final answer is -8. |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by naturalwaves: 1:42pm On Jul 28, 2016 |
4kings:Damn! Did you see an equal to sign there that you are getting specific answers? Don't you know what factorisation is? |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by naturalwaves: 1:42pm On Jul 28, 2016 |
FarukuWadata12:Factorise is what the queation says. Damn! |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by Nobody: 1:57pm On Jul 28, 2016 |
-(x-1)(x+1)(x-2)(x-4) Secondary school days were all fun for me 1 Like |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by 4kings: 2:02pm On Jul 28, 2016 |
naturalwaves: Hmm, then in that case I think the solution will be 3^2 - (x^2 - 3x - 1)^2 Going further will get u nowhere(though am not 100% sure) |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by naturalwaves: 2:04pm On Jul 28, 2016 |
4kings:Okay. Will get a pen once I settle down. |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by 4kings: 2:06pm On Jul 28, 2016 |
naturalwaves: I'm waiting |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by 4kings: 2:07pm On Jul 28, 2016 |
AnalyticEngine:Please can u elucidate. |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by Nobody: 2:17pm On Jul 28, 2016 |
4kings:9-(xsq-3x-1)sq = 3sq - (xsq -3x -1)sq =(3+xsq-3x-1)(3-xsq+3x+1) ...differences of squares = (2-3x+xsq)(4+3x-xsq) = -(2-3x+xsq)(xsq-3x-4) = -(2-3x+xsq)(x-4)(x+1) = -(x-2)(x-1)(x-4)(x+1) or (2-x)(x-1)(x-4)(x+1) 1 Like 1 Share |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by 4kings: 2:48pm On Jul 28, 2016 |
AnalyticEngine: Dammmmmmmmmmm, I can't believe I missed that(difference of square). Thanks. 1 Like |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by leahcimzil: 3:08pm On Jul 28, 2016 |
it pains me when people call these stupid ass equations hard. What will you now do when you come across calculus or abstract algebra. Btw, i think the answer is (x-4) (x+1) it's not hard, it's annoying modified 9 - (x^2 - 3x - 1)^2 = 3^2 - (x^2 - 3x - 1)^2 difference of two squares (3 - (x^2 - 3x - 1)) ( 3 + (x^2 - 3x - 1)) (3 - x^2 + 3x + 1)( 3 + x^2 - 3x - 1) ( - x^2 + 3x + 3 + 1)( x^2 - 3x + 3 - 1) = ( - x^2 + 3x + 4)( x^2 - 3x + 2) = ( - (x^2 - 3x - 4)) ( x^2 - 3x + 2) = ( - ((x - 4)(x + 1)) ((x - 2)(x - 1)) it's actually = - (x - 4)(x + 1)(x - 2)(x - 1) |
Re: Jamb Math Question That 'jammed' Most Students - Can You Solve It? by leahcimzil: 3:13pm On Jul 28, 2016 |
AnalyticEngine:damn difference of two squares...it's annoying |
(1) (Reply)
Very Clean UK Used core i5 Fujitsu Lifebook LH530 Is For Sale In Lagos / Human Anatomy And Physiology Students Forum / Laspotech Acceptance Fee 2018 & LASPOTECH SCHOOL FEES 2018
(Go Up)
Sections: politics (1) business autos (1) jobs (1) career education (1) romance computers phones travel sports fashion health religion celebs tv-movies music-radio literature webmasters programming techmarket Links: (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) Nairaland - Copyright © 2005 - 2024 Oluwaseun Osewa. All rights reserved. See How To Advertise. 18 |