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padilas [110]
2 years ago
8

If f(x)= (2x)^2, how do I find f(-4)? Explain.

Mathematics
2 answers:
spin [16.1K]2 years ago
8 0

Answer:

the answer is 64

Step-by-step explanation:

f(-4) means that x is -4 (in other words it replaces x)

so thatll be f(-4) = (2(-4))^2

solve by PEMDAS (Parenthesis, Exponent, Multiplication, Division, Addtion Subtraction)

meaning 2 times -4 equals -8

-8 raised to the second power is saying -8 times -8 which equals 64

Westkost [7]2 years ago
7 0

Answer:

64

Step-by-step explanation:

f(4-)=2(-4)^2

2*-4=-8

-8^2=64

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