Question

ײ+3×=0?

ײ+6×=0?

9ײ-16=0?

ײ+25=0?
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Answer 1

Resposta:

x² - 3x = 0

x(x - 3) = 0

x = 0 ou x - 3= 0 => x = 3

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x² - 6x = 0

x(x - 6) = 0

x = 0

x - 6 = 0

x = 6

Resp.: x = 0 e x = 6

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9x²=16

x²=16/9

x=√(16/9)

x=±4/3

x1 = 4/3

x2= -4/3

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x²-25=0

x²=25

x=

x=5

Explicação passo-a-passo: