Question

Find the value of $p\left(x\right)=4x^2-3x+7$ at $x=1$.

• A. $6$
• B. $7$
• C. $8$
• D. $9$

Answer 1

The correct option is C $8$

Given polynomial is $p\left(x\right)=4x^2-3x+7$

We need to find value of polynomial at $x=1$.

Then put the value of $x=1$ in the given polynomial, we get

$p\left(x\right)=4(1{)}^2-3(1)+7$

$\Rightarrow p\left(x\right)=4\times 1-3\times 1+7$

$\Rightarrow p\left(x\right)=4-3+7$

$\Rightarrow p\left(x\right)=11-3=8$

So, value of polynomial is $8$.