Question

Find the zeroes of quadratic polynomial of x2+13x+36=0

Answer 1

x²+ 13x+36
=x²+9x+4x+36
=x(x+9)+4(x+9)
=(x+4)(x+9)

=x+4=0 and x+9=0
=x=-4 and x=-9

Answer 2

x²+ 13x+36
=x²+9x+4x+36
=x(x+9)+4(x+9)
=(x+4)(x+9)