Question

What is the value of t in
15 = 25t + 10t^2

Please answer step by step!!! The best and correct answer will be marked as brainliest.

Answer 1

Answer:

t= 3 and t=1/2

Step-by-step explanation:

→ 15= 25t + 10t²

→ 0 = 25t + 10t² - 15

→ 10t² + 25t -15 = 0

→ 2t² + 5t - 3 = 0

→ 2t² + 6t - t - 3 = 0

→ 2t(t+3) - 1(t+3) = 0

→ (t+3) (2t-1) = 0

Now,

t+3 = 0

t = -3

and

2t-1 = 0

2t= 1

t = 1/2