Question

Can anyone help me understand this will give out medal.
Simplify. 4x^2(x) + (x)(x)^2
I know that the answer is 5x^3 but I don't know how to simplify the expression itself please help!

Answer 1

here out you would simplify Simplifying
(x2 + -4)(x2 + -4)

Reorder the terms:
(-4 + x2)(x2 + -4)

Reorder the terms:
(-4 + x2)(-4 + x2)

Multiply (-4 + x2) * (-4 + x2)
(-4(-4 + x2) + x2(-4 + x2))
((-4 * -4 + x2 * -4) + x2(-4 + x2))
((16 + -4x2) + x2(-4 + x2))
(16 + -4x2 + (-4 * x2 + x2 * x2))
(16 + -4x2 + (-4x2 + x4))

Combine like terms: -4x2 + -4x2 = -8x2
(16 + -8x2 + x4)

Answer 2

sorry If this doesn't make sense! trying my best to help , tag me if you need more information or help!

Answer 3

I kind of understand but I just don't understand where 5x^3 comes from out of that

Answer 4

no its nothing dealing with your problem , it is just a example of how you break it down , sorry should have added that thought lol