Expand and combine terms?

2 ⤊

Expand and combine terms?

4x(2x – 1) + 5x(3x + 1)

2007-09-13 09:37:27 · 4 answers · asked by baby166_99 2 in Science & Mathematics ➔ Mathematics

4 answers

8 x ² - 4 x + 15 x ² + 5 x
23 x ² + x

2007-09-13 11:04:10 · answer #1 · answered by Como 7 · 2⤊ 0⤋

4x(2x – 1) + 5x(3x + 1)
First, distribute the 4x and 5x and you get this:
(4x*2x - 4x*1) + (5x*3x + 5x*1)

Then, multiply each of them, and you get this:
8x^2 - 4x + 15x^2 + 5x
[notice the parenthesis could be removed since it is seperated by an addition +]

Then, combine like terms and your final answer is:
23x^2 + x

2007-09-13 16:43:07 · answer #2 · answered by Anonymous · 0⤊ 1⤋

8x^2 -4x +15x^2 +5x

23x^2 +x

2007-09-13 16:44:29 · answer #3 · answered by peteryoung144 6 · 0⤊ 1⤋

23x(x+1) or 23x^2 + x

2007-09-13 16:44:21 · answer #4 · answered by Crazy and Lovin It 4 · 0⤊ 1⤋