Question

me ajudem pf
a)25x²-1
b)24x²-32x+48x³

Answer 1

48x³+24x²-3x=0
a=48; b=24; c=-3

Δ=b²-4ac
Δ=(24)²-4*48*(-3)
Δ=0

x=b²+ou-√Δ/2a

x=576-0/96
x=6




primeiro exercicio:

25x²-1=0
25-1=x²
24=x²
√24=x
4,8=x