Evaluate
-x^{2}+65x-959.75
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-x^{2}+65x-959.75
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40.25-\left(1000-40x-25x+x^{2}\right)
Apply the distributive property by multiplying each term of 40-x by each term of 25-x.
40.25-\left(1000-65x+x^{2}\right)
Combine -40x and -25x to get -65x.
40.25-1000-\left(-65x\right)-x^{2}
To find the opposite of 1000-65x+x^{2}, find the opposite of each term.
40.25-1000+65x-x^{2}
The opposite of -65x is 65x.
-959.75+65x-x^{2}
Subtract 1000 from 40.25 to get -959.75.
40.25-\left(1000-40x-25x+x^{2}\right)
Apply the distributive property by multiplying each term of 40-x by each term of 25-x.
40.25-\left(1000-65x+x^{2}\right)
Combine -40x and -25x to get -65x.
40.25-1000-\left(-65x\right)-x^{2}
To find the opposite of 1000-65x+x^{2}, find the opposite of each term.
40.25-1000+65x-x^{2}
The opposite of -65x is 65x.
-959.75+65x-x^{2}
Subtract 1000 from 40.25 to get -959.75.
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