X^2 + px - 32 = 0
8^2 + p*8 - 32 = 0
8p = - 32
p = - 4
x^2 - 4x - 32 = (x - 8)(x + 4)
x2 = - 4
x1 = 8
<span>4(3y-1)² -18y(2y-1)=4(9у²-6у+1)-36у²+18у=36у²-24у+4-36у²+18у=-6у+4</span>
|7x+4|≥6+5x ⇔[ 7x+4≤ -(6+5x) ; 7x+4≥ 6+5x.
[ x ≤ -5/6 ; x≥2 .
ответ: x∈ (-∞; -5/6] U[2 ;∞) .