The solution equations are: 1. 81 of x2-256 = 0 2, (x + 2) 2 = 289 3, 4 (x + 1) 2-25 = 0 4, 4 (2x + 3) 2 = (- 3) 2

The solution equations are: 1. 81 of x2-256 = 0 2, (x + 2) 2 = 289 3, 4 (x + 1) 2-25 = 0 4, 4 (2x + 3) 2 = (- 3) 2


1、x²-(81/256)=0
x²=(81/256)
=9²/16²
x=±9/16
2、(x+2)²=289
x+2=±√289
x=±√289-2
3、4(x+1)²=25=5²
(x+1)²=5²/2²
x+1=±5/2
x1=3/2,x2=-7/2
4、4(2x+3)²=9
(2x+3)²=9/4
2x+3=±3/2
2x=3/2-3 ,2x=-3/2-3
x1=-3/4 ,x2=-9/4