Evaluate
-400\left(x\left(x+2\right)\right)^{2}
Expand
-400x^{4}-1600x^{3}-1600x^{2}
Graph
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-400x^{2}\left(x^{2}+4x+4\right)
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+2\right)^{2}.
-400x^{4}-1600x^{3}-1600x^{2}
Use the distributive property to multiply -400x^{2} by x^{2}+4x+4.
-400x^{2}\left(x^{2}+4x+4\right)
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+2\right)^{2}.
-400x^{4}-1600x^{3}-1600x^{2}
Use the distributive property to multiply -400x^{2} by x^{2}+4x+4.
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