Question

(y-5)的平方-36=0 1/2(x-根号2)^2=8 2x^2=5x-2(配方法)

Answer 1

(y-5)的平方-36=0

(y-5)的平方=36

y-5=±6

y=11 y=-1

1/2(x-根号2)^2=8

(x-根号2)^2=16

x-根号2=±4

x=根号2±4

2x^2=5x-2

x^2-5/2x+1=0

(x-5/4)^2=9/16

x-5/4=±3/4

x=2 x=1/2