Question

me ajudem nessa por favor (2x-1)2-(x+2)2=-2x

Answer 1

(2x-1) × 2 = 4x-2
-1 × (x+2) = -x-2
-x-2 × 2 = -2x-4
4x-x-8= -2x
7x-8= 0
7x= +8
x= 8/7
x= 1.14285714286