simplify (x-2)(x^2+3x-8)?

Question

Also on Algebra final, would like to see how to work out.

Answer 1

(x-2)(x^2 + 3x - 8)
= x(x^2) + x(3x) + x(-8) + (-2)(x^2) + (-2)(3x) + (-2)(-8)
= x^3 + 3x^2 - 8x - 2x^2 - 6x + 16
= x^3 + x^2 - 14x + 16

Answer 2

x^2 + 3x - 8

x - 2

-16 -6x -2x^2

-8x 3x^2 x^3



x^3 + x^2 -14x + 16


Multiply the like terms; then add as in traditional muliplication

Answer 3

(x-2)(x^2+3x-8)
the first thing you do is distribute the x and -2..
x^3+3x^2-8x-2x^2-6x+16
then, combine similar terms
x^3+x^2-14x+16

Answer 4

(x-2)(x^2+3x-8) distribute (x-2)
x³ + 3x² - 8x
- 2x² - 6x + 16

x³ + x² - 14x + 16

Answer 5

well x is times, like multiply so the first one must be 2 xs and the next one looks like 24 xs at the end and 2 xs in the middle, don't know what that ^ is (and it took me ages to find it on the keyboard)
it looks like 28xs might be the answer

that's one hell of a sum better put approx after the answer just in case I was an x or two out.


EDIT Oh blimey I've just seen that lot above me, they have made things even more complicated than you had them.


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Answer 6

=x(x^2+3x-8) -2(x^2+3x-8)
=x^3+3x^2-8x-2x^2-6x+16
=x^3+x^2-14x+16

Answer 7

= x³ + 3x² - 8x - 2x² - 6x + 16
= x³ + x² - 14x + 16

Answer 8

How about you do your own homework instead of posting every problem. I've noticed you've posted 3 of your homework problems RIGHT IN A ROW. Thank you.

Answer 9

(x-2)(x-2)(x+4)
((x-2)^2) (x-4)
This is to simplify, to solve is (x^3)+(x^2)-14x+16

Answer 10

(x^2+3x-8) is unfactorable, if you need it factored. ;-( Make sure you copied it right, that could be the problem