Multiply (5x^2 + x - 4)(x + 2).

5x3 + x2 - 4x - 8

5x3 + 11x2 - 2x - 8

5x3 + 10x2 - 4x - 8

5x3 + 20x2 + 2x - 8
@JackleBee

Question

Multiply (5x^2 + x - 4)(x + 2).

5x3 + x2 - 4x - 8

5x3 + 11x2 - 2x - 8

5x3 + 10x2 - 4x - 8

5x3 + 20x2 + 2x - 8 
@JackleBee

anonymous · Answer

Lol did you try this by your self with the distributive property?

joel_the_boss · Answer

Im not good at math lol

anonymous · Answer

Just do this:|dw:1412781979371:dw|

anonymous · Answer

so (5x^2 + x - 4)(x + 2

1. 5x^2(x) + 5x^2(2)

2. x(x) + x(2)

3. -4(x) + (-4)(2)

anonymous · Answer

1. 5x^3 (because you multiplied by another x so x is now increased to a bigger exponent) and 10x^2 (because you multiplied the coefficient of 5 x 2 =`0

2. x^2 + 2x

3. -4x - 8 

soo combine like terms...

5x^3 +11x^2-2x-8

anonymous · Answer

answer is b.

joel_the_boss · Answer

Bro your so smart lol 2 weeks from now your going to be level 80 xD

anonymous · Answer

naww you are too kind, you are a smart guy as well- just keep practicing and all will be breeze.

anonymous · Answer

|dw:1412782334954:dw|

But you understand right?