Question

s=t2+t then find the values of t for which s=2

Answer 1

Answer:

For t=1 and t= -2, s=2

Step-by-step explanation:

2=t^2+t

t^2+t-2 =0

t^2+2t-t-2 =0

t(t-1)+2(t-1) =0

(t+2)(t-1) =0

t = - 2 or 1

Answer 2

Answer:

s=t^2+t

2t=t^2

t=t^2÷2

t=2