Question

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Answer 1

Resposta:

a) x1= 0, x2= 5

b) x1= 0, x2= 7/5

c) x1= -3, x2= 0

Explicação passo-a-passo:

a) x² -5x= 0

↓

x(x-5)=0

↓

x= 0

x-5= 0

↓

x= 0

x=5

b)5x² -7x= 0

↓

x(5x-7)= 0

↓

x= 0

5x-7= 0

↓

x= 0

x= 7/5

c) x²+3x= 0

↓

x(x+3)= 0

↓

x= 0

x+3=0

↓

x= 0

x= -3

Answer 2

Resposta:

a=x1=0,x²=5