Resources

Resources

Bytelearn - cat image with glasses

AI tutor

Welcome to Bytelearn!

Let’s check out your problem:

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:

View step-by-step help

View step-by-step help

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: $50 - 35 + 1 = 16$

More problems from Evaluate expression when a complex numbers and a variable term is given

Question

\newline

8i + 6i

\newline

\newline

Write your answer in the form

a + bi

\newline

\underline{\hspace{1cm}}

\newline

Posted 2 months ago

Question

Find the complex conjugate of the given number.

\newline

4 + 10i

\newline

\newline

Write your answer in the form

a + bi

\newline

Posted 1 month ago

Question

\newline

\frac{{-4i}}{{-9i}}

\newline

\newline

Write your answer in the form

a + bi

. Reduce all fractions.

\newline

\_\_\_\_\_

\newline

Posted 1 month ago

Question

Combine the like terms to create an equivalent expression.

\newline

7k-k+19=\boxed{\phantom{0}}

Posted 4 months ago

Question

Apply the distributive property to factor out the greatest common factor.

\newline

9+12 n=

Posted 1 month ago

Question

Solve the equation.

\newline

\begin{aligned} & 12=n-9 \\ n= & \square \end{aligned}

Posted 4 months ago

Question

What is the amplitude of

y=-\sin (8 x-3)+5

\newline

Posted 2 months ago

Question

What is the period of

\newline

y=4 \sin (-2 x+7)-1 \text { ? }

\newline

Give an exact value.

\newline

Posted 1 month ago

Question

3 \cdot(3+20 i)=

\newline

Your answer should be a complex number in the form

a+b i

a

b

are real numbers.

Posted 3 months ago

Question

(35-23 i)+(13+25 i)=

\newline

Express your answer in the form

(a+b i)

Posted 1 month ago