Question #054f6

1 Answer
Jul 30, 2017

You cannot factor this.

Explanation:

We are actually unable to factor this equation (unless you use the quadratic formula). This is because 65=13\cdot5, so there is no way to create a coefficient of 4 for the x term (13-5=8,-13+5=-8)

However, let's just find the roots.

Using the quadratic formula,

x=(-4\pmsqrt(4^2-(4)(1)(-65)))/2=(-4\pmsqrt(16+260))/2=(-4\pmsqrt(276))/2=(-4\pm2sqrt(69))/2=-2pmsqrt(69)