Question

encontre as raízes da equação A)2x=50=0 B)×+2×=0 C )×2-3×-10=0

Answer 1

a) 2x-50=0
2x=50
x=50/2
x=25

b) x+2x=0
3x=0
x=0/3
x=0

c) x²-3x-10=0
∆=(-3)²-4.1.(-10)
∆=9+40
∆=49

x= -(-3)±√49/2.1
x= 3±7/2
x1=3+7/2= 10/2=5
x2= 3-7/2= -4/2=-2