Question

prove by factor theorem x+3 is a factor of x^2 + 8x + 15

Answer 1

Answer:

here is the answer ..........

Answer 2

$x+3 = 0$

$x = -3$

Now,

$p(x) ={ x}^{2}+8x+15 = 0$

$p(-3) = {-3}^{2}+8×(-3) +15 = 0$

$9 -24+15 = 0$

$24-24 = 0$

Since, LHS is equal to RHS i.e 0

Hence, proved