Question

(4х-3)(4х+3)-(6х-1)2=0

Answer 1

$16x^{2}-9-(36x^{2}-12x+1)=0$
$16x^{2}-9-36x^{2}+12x-1=0$
$-20x^{2}+12x-10=0$
$10x^{2}-6x+5=0, D=36-4*5*10 textless 0$
нет корней