Question

Me ajudem nessa questão por favor

Answer 1

h = 0 
-25t² + 625 = 0
Δ = b²-4.a.c
Δ = 0 - 4. (-25).625
Δ = 62500
x = -b +- √Δ/2.a
x = 0 +-√62500/2.(-25)
x' = +√62500/-50
x' = 250/-50
x' = -5
x'' = -√62500/2.(-25)
x'' = -250/-50
x'' = 5