Tentukan hp dari A.3x+2 = 14 + 1 3x+6 B. [ 2x + 5 ] - 3 > 7

Tentukan hp dari
A.3x+2 = 14 + 1 3x+6
B. [ 2x + 5 ] – 3 > 7

$a. \ frac{3}{x + 2} = frac{1}{4} + frac{1}{3x + 6} \ frac{3}{x + 2} = frac{3x + 6 + 4}{12x + 24} \ 3(12x + 24) = x + 2(3x + 10) \ 36x + 72 = {3x}^{2} + 10x + 6x + 20 \ {3x}^{2} + 16x + 20 - 36x - 72 = 0 \ {3x}^{2} - 20x - 52 = 0 \ (3x - 26)(3x + 6) \ (3x - 26)(x + 2) \ x = frac{26}{3} ataux = - 2 \ \ b. \ |2x + 5| - 3 > 7 \ |2x + 5| > 10 \ 2x + 5 < - 10 \ x_{1} < - frac{15}{2} \ 2x + 5 > 10 \ x_{2} > frac{5}{2}$