Evaluate
x\left(5x-2\right)\left(x+2\right)
Expand
5x^{3}+8x^{2}-4x
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\left(x^{2}+2x\right)\left(5x-2\right)
Use the distributive property to multiply x by x+2.
5x^{3}-2x^{2}+10x^{2}-4x
Apply the distributive property by multiplying each term of x^{2}+2x by each term of 5x-2.
5x^{3}+8x^{2}-4x
Combine -2x^{2} and 10x^{2} to get 8x^{2}.
\left(x^{2}+2x\right)\left(5x-2\right)
Use the distributive property to multiply x by x+2.
5x^{3}-2x^{2}+10x^{2}-4x
Apply the distributive property by multiplying each term of x^{2}+2x by each term of 5x-2.
5x^{3}+8x^{2}-4x
Combine -2x^{2} and 10x^{2} to get 8x^{2}.
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