Given f(x)=2x^(2)+7x+1, find f(-5) Answer:

Substitute x with -5: Given the function f(x) = 2x^2 + 7x + 1, we need to find the value of f(-5). This means we will substitute x with -5 in the function and simplify. Calculation: f(-5) = 2(-5)^2 + 7(-5) + 1Calculate square of -5: First, calculate the square of -5. Calculation: (-5)^2 = 25Multiply 2 by square: Next, multiply 2 by the result of (-5)^2. Calculation: 2 * 25 = 50Multiply 7 by -5: Now, multiply 7 by -5. Calculation: 7 * (-5) = -35Add all terms together: Finally, add all the terms together: 50 (from step 3), -35 (from step 4), and the constant term 1. Calculation: 50 - 35 + 1 = 16

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Given
f(x)=2x^(2)+7x+1, find
f(-5)
Answer:

Given $f(x)=2 x^{2}+7 x+1$ , find $f(-5)$ $\newline$ Answer:

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Math Problems

Algebra 2

Evaluate expression when a complex numbers and a variable term is given

Full solution

Q. Given

f(x)=2 x^{2}+7 x+1

, find

f(-5)

\newline

Answer:

Substitute $x$ with $-5$ : Given the function $f(x) = 2x^2 + 7x + 1$ , we need to find the value of $f(-5)$ . This means we will substitute $x$ with $-5$ in the function and simplify. $\newline$ Calculation: $f(-5) = 2(-5)^2 + 7(-5) + 1$
Calculate square of $-5$ : First, calculate the square of $-5$ . $\newline$ Calculation: $(-5)^2 = 25$
Multiply $2$ by square: Next, multiply $2$ by the result of $(-5)^2$ . $\newline$ Calculation: $2 \times 25 = 50$
Multiply $7$ by $-5$ : Now, multiply $7$ by $-5$ . $\newline$ Calculation: $7 \times (-5) = -35$
Add all terms together: Finally, add all the terms together: $50$ (from step $3$ ), $-35$ (from step $4$ ), and the constant term $1$ . $\newline$ Calculation: $50 - 35 + 1 = 16$