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7200+3000x-1200x^{2}
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7200+3000x-1200x^{2}
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7200-1800x+4800x-1200x^{2}
Apply the distributive property by multiplying each term of 72+48x by each term of 100-25x.
7200+3000x-1200x^{2}
Combine -1800x and 4800x to get 3000x.
7200-1800x+4800x-1200x^{2}
Apply the distributive property by multiplying each term of 72+48x by each term of 100-25x.
7200+3000x-1200x^{2}
Combine -1800x and 4800x to get 3000x.
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