Question

14. Solve for t by factoring: t² - 2t - 15 =

Answer 1

t² - 2t - 15 =0

t(t+3) -5t -15=0 factor out t

t(t+3) -5(t+3)=0 factor out -5

(t+3)(t-5)=0 factor out (t+3)

t+3=0 t-5=0
-3 -3 +5 +5
t=-3 t=5

Sloutiion t=-3 and t=5