Evaluate
\left(9-t\right)\left(t+8\right)
Expand
72+t-t^{2}
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9t-t^{2}+72-8t
Apply the distributive property by multiplying each term of t+8 by each term of 9-t.
t-t^{2}+72
Combine 9t and -8t to get t.
9t-t^{2}+72-8t
Apply the distributive property by multiplying each term of t+8 by each term of 9-t.
t-t^{2}+72
Combine 9t and -8t to get t.
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