Question

What should be the value of $a$ if the value of$2x^2+x-a$ equals to $5$, when $x=0$?

Answer 1

Find the value of $a$.

It is given that,

The value of$2x^2+x-a$ equals to $5$, when $x=0$

$$\begin{gathered} \therefore 2x^2+x-a=5 \\ \Rightarrow 2{\left(0\right)}^2+0-a=5 \\ \Rightarrow 0+0-a=5 \\ \Rightarrow -a=5 \\ \therefore a=-5 \end{gathered}$$

Thus, the value of $a$ is $-5$.