Question

what are the factors of the polynomial x² + x(a+b) +ab​

Answer 1

x+2

x+2=0

x= -2

f(x)=x² + x(a+b) +ab

f(-2)=...........

Answer 2

Answer:

$x {}^{2} + x(a + b) + ab = 0 \\ x {}^{2} + ax + bx + ab = 0\\ x(x + a) + b(x + a) = 0 \\ x + b = 0 \: \: \: \: \: \: \: \: \: \: x + a = 0$