Question

Find the value of the following expression for x = 2 : 15x – 5x^2.​

Answer 1

Given :

$x =2:15x-5x^2$

Solution :

$\implies 15x-5x^2$

$\text{Substitute 2 in place of x}$

$\implies 15(2)-5(2)^2$

$\implies 30 - 5(4)$

$\implies 30-20$

$\implies 10$