Let f(x)= 2x2−3x+8 What is the value of f(-4)?

52

Step-by-step explanation:

So we have the function:

And we want to find f(-4).

To find f(-4), substitute -4 for x. Thus:

Square:

Multiply:

Add:

Add:

And we're done!

Our answer is 52.

f(-4)=52

Step-by-step explanation:

We are given the function:

We want to find f(-4), so we must substitute -4 in for x.

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition and Subtraction.

Evaluate the exponent first.

⇒ (-4)²= -4*-4 = 16

Multiply 2 and 16.

⇒ 2*16=32

Multiply -3 and -4.

⇒-3*-4=12

Add the three numbers together.

f(-4) for the function f(x)=2x²-3x+8 is equal to 52

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step-by-step explanation:

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step-by-step explanation:

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