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08-12-2020
Mathematics

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Let f(x) = x² + 3x
What is f(-1) ?

Need help ASAP !!!!

Respuesta :

08-12-2020

Answer:

-2

Step-by-step explanation:

f(x) = x² +3x

so f(-1) means f(x= -1) so wherever you see a "x" in your equation you put a "-1"

f(-1) = (-1)² +3*(-1) = 1 -3 = -2

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