Question

(2x+1)²-(x-1)²=6x+6​

Answer 1

$(2x + 1) {}^{2} - (x - 1) {}^{2} = 6x + 6$

(2x+2)-(x-2)=6x+6

4x-1=12x

12x=-3x

x=12=-3×(-1)

x=12÷3

x=4