,3x (exponet 2) + 10x -8 , 7x exponent2, -31x+12, and 3x eponent 2 -8x +5
2007-02-22 13:02:38 · 4 answers · asked by Lena 3 in Science & Mathematics ➔ Mathematics
Answer 1:
2x^2 - 5x - 3
= 2x^2 - 6x + x - 3
= 2x(x - 3) + 1(x - 3)
= (2x + 1)(x - 3)
Answer 2:
3x^2 + 10x - 8
= 3x^2 - 2x + 12x - 8
= x(3x - 2) + 4(3x - 2)
= (3x - 2)(x + 4)
Answer 3:
7x^2 - 31x + 12
= 7x^2 - 28x - 3x + 12
= 7x(x - 4) - 3(x - 4)
= (7x - 3)(x - 4)
Answer 4:
3x^2 - 8x + 5
= 3x^2 - 3x - 5x + 5
= 3x(x - 1) - 5(x - 1)
= (3x - 5)(x - 1)
2007-02-22 13:15:04 · answer #1 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 0⤋
what you desire to do is mult. 2 cases -3. so which you get 2x^2+5x-6. Now, what 2 kind whilst mult. provide you -6 and once you upload provide you 5? -a million and 6. so which you at present get 2x^2-x+6x-6. Now ingredient by potential of grouping. 2x(x-a million)+6(x-a million). Now use the distributive regulation. You get (x-a million)(2x+6).
2016-10-16 07:07:05 · answer #2 · answered by ? 4 · 0⤊ 0⤋
The following web link will help you solve your problem: http://www.algebrahelp.com/calculators/expression/factoring/
2007-02-22 13:13:40 · answer #3 · answered by Nick 1 · 0⤊ 0⤋
(2x + 1)(x - 3)
2007-02-22 13:08:00 · answer #4 · answered by richardwptljc 6 · 0⤊ 0⤋