Question

tìm x  

x(8x-2)-8x²+12=0

Answer 1

x.(8x - 2) - 8x² + 12 = 0

=> 8x² - 2x - 8x² + 12 = 0

=> 12 - 2x = 0

=> 2x = 12

=> x = 12 : 2

=> x = 6

Vậy x = 6