Question

решить уравнение (3x-1)(12x+1)-10=(6x+2)^2

Answer 1

$(3x-1)(12x+1)-10=(6x+2)^2$

$36x^2+3x-12x-1-10=36x^2+24x+4$

$-33x=15$

$x=-frac{5}{11}$

Answer 2

(3x - 1)(12x + 1) - 10 = (6x + 2)²,

36х² + 3х - 12х - 1 - 10 = 36х² + 24х + 4,

36х² - 9х - 11 =  36х² + 24х + 4,

36х² - 9х - 11 - 36х² - 24х - 4 = 0,

-33х - 15 = 0,

-33х = 15,

-11х = 5,

х = -5/11.