Question

me ajudem com , 2 equacoes , x(quadrado)+5x-50=0 e x(quadrado)-12x+32=0 ?? por favor

Answer 1

a) x^2+5x-50=0
delta = b^2-4.a.c
delta = 5^2-4.1.(-50)
delta=25+200
delta=225
x=-b-/+ raiz de delta/2a
x=-5-15/2.1
x=-20/2
x=-10
x=-5+15/2.1
x=10/2
x=5
b) x^2-12x+32=0
delta = b^2-4.a.c
delta=(-12)^2-4.1.32
delta=144-128
delta=16
x=-b-/+ raiz de delta/2a
x=-(-12)-4/2.1
x=12-4/2
x=8/2
x=4
x =-(-12)+4/2.1
x=12+4/2
x=16/2
x=8