1) x=-2+(2a+2):2(2+а) 2) x=-2-(2a+2):2(2+а)

Question

1) x=-2+(2a+2):2(2+а)
2) x=-2-(2a+2):2(2+а)

Answer 1

1)
х=-2+(2а+2):2(2+а)
х=-2+2а+2:2·(2+а)
х=-2+2(а+1):2·(2+а)
х=-2+(а+1)·(2+а)
х=-2+2а+а²+2+а
х=3а+а²