Question

how do solve 48=-3(t-5)*squared* +75

Answer 1

isolate t first...

48 - 75 = -3(t-5)^2
...
-27 = -3(t-5)^2

-27/-3 = (t-5)^2

9 = (t-5)^2

take the square root...

3 = t- 5

t = 8

Answer 2

thank you !!!!