(2x+5)^2=(3x-1)^2 giup mk di minh vote cho 06/12/2021 Bởi Ariana (2x+5)^2=(3x-1)^2 giup mk di minh vote cho
(2x+5)^2=(3x-1)^2
2x+5=3x-1
3x-2x=5+1
x=6
$(2x+5)²=(3x-1)²$
$⇔2x+5=3x-1$
$⇔2x-3x=-1-5$
$⇔-x=-6$
$⇔x=6$