Question

Resolva as seguintes equações 2° grau x²-15+36%=0

Answer 1

Resposta:

X²-15+36/100=0

Δ=B²-4AC

Δ=225-4.1.36/100

Δ=225-144/100

Δ=81/100

F. BASK

X' "=(-B±√Δ)/2.A

X'=(-(-15)+√81/100)/2

X'=(15+9/10)/2

X'=(24/10)/2

X'=(24/10).(1/2)

X'=24/20 SIMPLIFICANDO

X'=6/5

X"=(15-9/10)/2

X"=(6/10)/2

X"=(6/10).(1/2)

X"=(6/20)

SIMPLIFICANDO

X"=3/10