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let f(x)=x^2-3x -7 find f (-3)...
choose 11,8,-7,-10 whats the answer one of these are the answers

Sagot :

heyDB
Replace the variable x with −3 in the expression.
f(−3)=(−3)^2−3(−3)−7

Simplify each term.
f(−3)=9+9−7

Add 9 and 9 to get 18.
f(−3)=18−7

Subtract 7 from 18 to get 11.
f(−3)=11

The final answer is 11.

11
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