Evaluate
24x^{2}-4x-4
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24x^{2}-4x-4
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25x^{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}.
25x^{2}-x^{2}-4x-4
To find the opposite of x^{2}+4x+4, find the opposite of each term.
24x^{2}-4x-4
Combine 25x^{2} and -x^{2} to get 24x^{2}.
25x^{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}.
25x^{2}-x^{2}-4x-4
To find the opposite of x^{2}+4x+4, find the opposite of each term.
24x^{2}-4x-4
Combine 25x^{2} and -x^{2} to get 24x^{2}.
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