Given f(x)=-4x^(2)+x, find f(-2) Answer:

Substitute x with -2: We are given the function f(x) = -4x^2 + x. To find f(-2), we need to substitute x with -2 in the function. Calculation: f(-2) = -4(-2)^2 + (-2)Calculate square of -2: First, calculate the square of -2. Calculation: (-2)^2 = 4Multiply by -4: Now, multiply the result by -4. Calculation: -4 * 4 = -16Add to -2: Next, add the product of -4 and the square of -2 to the value of -2. Calculation: -16 + (-2) = -18Find f(-2): We have now found the value of f(-2). Final Answer: f(-2) = -18

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Given
f(x)=-4x^(2)+x, find
f(-2)
Answer:

Given $f(x)=-4 x^{2}+x$ , find $f(-2)$ $\newline$ Answer:

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Math Problems

Algebra 2

Evaluate expression when two complex numbers are given

Full solution

Q. Given

f(x)=-4 x^{2}+x

, find

f(-2)

\newline

Answer:

Substitute $x$ with $-2$ : We are given the function $f(x) = -4x^2 + x$ . To find $f(-2)$ , we need to substitute $x$ with $-2$ in the function. $\newline$ Calculation: $f(-2) = -4(-2)^2 + (-2)$
Calculate square of $-2$ : First, calculate the square of $-2$ . $\newline$ Calculation: $(-2)^2 = 4$
Multiply by $-4$ : Now, multiply the result by \(-4＂). $\newline$ Calculation: \(-4 \times $4$ = $-16$ ＂)
Add to $-2$ : Next, add the product of $-4$ and the square of $-2$ to the value of $-2$ . $\newline$ Calculation: $-16 + (-2) = -18$
Find $f(-2)$ : We have now found the value of $f(-2)$ . $\newline$ Final Answer: $f(-2) = -18$