Question

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

Answer 1

Given: $2x^2+x-a=5$
$\Rightarrow 2(0{)}^2+0-a=5$ [Putting x = 0]
$\Rightarrow 0+0-a=5\Rightarrow a=-5$
Hence, the value of a is -5.