factor

Question

x squared+ 8x+3

Answer 1

x^2+8x+3

64-12=52/4=13

(x+4-sqrt13)(x+4+sqrt13)

checking,
x^2+4x+x*sqrt13+4x+4sqrt13+16-xsqrt13-4sqrt13-13
x^2 +x(+sqrt13+8-sqrt13)+16-13=
x^2+8x+3