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When f(x)=7x^-4x+3 Evaluate f(-3)

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Answer:

f(x) = 7x^2 - 4x + 3 = 78.

Explanation:

you simply need to substitute -3 in place of x and perform

the calculations. f(-3) = 7(-3)^2 - 4(-3) + 3 bec x is equal to -3

Now use PEMDAS

f(-3) = 7 * 9 + 12 + 3

multiply 7 and 9

f(-3) = 63 + 12 + 3

add 63, 12 and 3

f(-3) = 78

So, when x = -3, the value of the function f(x) = 7x^2 - 4x + 3 is 78.

User Teun Zengerink
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