Question

What is the positive solution of x2 – 36 = 5x?

Answer 1

The positive solution is x=9

Explanation:

Given the equation

`x^2-36=5x`

we have to find the positive solution of above equation.

`Equation: x^2-5x-36=0`

By splitting middle-term method

`x^2-5x-36=0`

`x^2-9x+4x-36=0`

`x(x-9)+4(x-9)=0`

`(x+4)(x-9)=0`

`x+4=0, x-9=0`

The solution is x=-4 and x=9

Hence, the positive solution is x=9