2007-03-08 07:02:25 · 4 answers · asked by kp 2 in Education & Reference ➔ Homework Help
3(x - 1) = 2x(x - 5) - 10 =
3x - 3 = 2x² - 10x - 10
3x - 3 - 3x = 2x² - 10x - 10 - 3x
- 3 = 2x² - 13x - 10
- 3 + 3 = 2x² - 13x - 10 + 3
0 = 2x² - 13x - 7
(2x + 1)(x - 7)
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2007-03-08 07:14:39 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
next time, post this in the science/mathematics section, you'll get answers faster
3x-3 = 2x^2-10x-10
2x^2 - 13x-7 =0
(2x+1)(x-7)
2007-03-08 07:06:49 · answer #2 · answered by bksrbttr 3 · 0⤊ 0⤋
3x-3=2x^2-10x-10
3x-3x-3=2x^2-3x-10x-10
-3=2x^2-13x-10
-3+3=2x^2-13x-7
0=2x^2-13x-7
(2x+1)(x-7)
x=1/2 x=7
2007-03-08 07:21:51 · answer #3 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
The brackets advise comparable to multiplication, and thank you to the distributive assets, the huge form in front of the brackets could be prolonged to each and each merchandise interior the brackets. So, thus, the it somewhat is comparable to doing 5(10) - 5(x3) = 2(x) + 2(8).
2016-10-17 21:33:42 · answer #4 · answered by ? 4 · 0⤊ 0⤋