Question

Multiply.(5x2 + x - 4)(x + 2) (1 points)Question 10 options:
1) 5x3 + x2 - 4x - 8
2) 5x3 + 11x2 - 2x - 8
3) 5x3 + 10x2 - 4x - 8
4) 5x3 + 20x2 + 2x - 8

Answer 1

you can do this

Answer 2

i dont no where to start with these

Answer 3

FOIL

Answer 4

what

Answer 5

Google FOIL, method

Answer 6

the third one?

Answer 7

is the third one the answer?

Answer 8

sure

Answer 9

2) 5x3 + 11x2 - 2x - 8

Answer 10

raheen is correct--the answer is the second one: 5x^3+11x^2-2x-8

You can solve this by multiplying (5x^2+x-4) by x which is in (x+2)
Then multiply (5x^2+x-4) by 2 which is in (x+2)
Then combine all like terms and you will get 5x^3+11x^2-2x-8

Answer 11

thanks for you.

Answer 12

the second is right

Answer 13

Rather than FOIL, you should make it a habit to refer to this method as an application of the "Distributive Law" or "Distributive Property".