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4-4x-80x^{2}
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4-4x-80x^{2}
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4-20x+16x-80x^{2}
Apply the distributive property by multiplying each term of 2+8x by each term of 2-10x.
4-4x-80x^{2}
Combine -20x and 16x to get -4x.
4-20x+16x-80x^{2}
Apply the distributive property by multiplying each term of 2+8x by each term of 2-10x.
4-4x-80x^{2}
Combine -20x and 16x to get -4x.
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