Question

x. (x+2)=4x
por favor me ajudem

Answer 1

x (x + 2) = 4x
x² + 2x = 4x
x² + 2x - 4x = 0
x² - 2x = 0


x (x - 2) = 0
x = 0

x - 2 = 0
x = 2

s={ 0, 2 }




☆Bons estudos!