x^2-17x+52=0

Question

The answer is 4,13
But i don't know how to do..

Answer 1

(x-4)(x-13)= 0
if you multiply the brackets you would go back to
x^2 - 17 x + 52=0

the best is to look for the solutionof quadratic functions on google where to get the roots of the equation you substitute in
x= -b +/- SQRT(b^2-4ac)/2a