Question

determine a soluçao da equaçao 5x ao quadrado = 4500

Answer 1

Olá!

5X²=4500

5X²-4500=0

a=5    b=0    c= -4500

Δ=b²-4ac

Δ=0-4*5*(-4500)

Δ=90000

x=(-b±√Δ)/2a

x=(-0±√90000)/2*5

x=(-0±√90000)/10

x=(±300)/10

x=±30

x'= +30

x''= -30