Question

Gente,como se resolve isso: x²+3x(x-12)=0​

Answer 1

x² + 3x(x - 12) = 0

x² + 3x² - 36x = 0

4x² - 36x = 0

4x • (x - 9) = 0

x= 0

4x - 36 = 0

4x = 0 + 36

4x = 36

x= 36/4

x= 9

S= ( 0 , 9)