Question

Find all real values of x such that f(x) = 0.
f(x) = x^2 − 8x + 15
show steps please

Answer 1

f(x)=0 f(x)=x^2-8x+15
0=x^2-8x+15
0=(x-5)(x-3)
x-5=0 x-3=0
x=5 x=3