Answered

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f(x) = - 3x ^ 2 + 3x + 7 Find f(8)

Sagot :

2004froggy

Answer:

f(8) = -161

Step-by-step explanation:

Plugin 8 to each x value to get to this equation, -3(8)^2 + 3(8) + 7.  Once you have done that, make sure to multiply 8 to the second power and by 3 separately to get to this equation -3(64) + 24 + 7.  Combine 24 and 7 together to get 31 and multiply 64 by -3 to get -192.  Add 31 now to get -161 as your answer.

Answer:

f(8)= -161

Step-by-step explanation:

fill in 8 into x, so the equation becomes

f(8)=-3(8)^2+3(8)+7

f(8)=-3(64)+24+7

f(8)=-192+31

f(8)=-161

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