1. ( x+5)²-(x-1) = 48
x²+ 10x + 25 - (x² -2x + 1)= 48
x²+ 10x + 25 - x ²+ 2x - 1= 48
12x=24-48
12x=24
x=2
1. ( x+5)²-(x-1) = 48
x²+ 10x + 25 - (x² -2x + 1)= 48
x²+ 10x + 25 - x ²+ 2x - 1= 48
12x=24-48
12x=24
x=2