用分解因式法、适当的方法解方程用分解因式法解方程:(1)(2x-5)^2-(x-2)^2=0 (2)x^2+(√5+√3
用分解因式法、适当的方法解方程
用分解因式法解方程:
(1)(2x-5)^2-(x-2)^2=0 (2)x^2+(√5+√3)x+√15=0
(3)x^2-16x+60=0 (4)(x^2+x)(x^2+x-2)=24
(5)9/4(2x+3)^2=25/36(12x-18)^2 (6)(x-√2)=√5x(2-√2x)
(7)(x+1)(x+2)=2x+4 (8)(y+2)^2=(3y-1)^2
用适当的方法解方程:
(1)25x^2-144=0 (2)3x(1-x)=2x-2
(3)x^2+3x+2=0 (4)√2x^2+3x-2√2=0
(5)(√2-1)x-2x^2=0 (6)(√3+√2)x^2+2√3x+(√3-√2)=0
(7)(2m+1)^2+3(2m+1)+2=0
(8)x^2-4x+1=0 (9)(x-1)(x+2)=70
(10)9x^2=4(3x+1) (11)2x^2-7x+2=0
(12)(4x-1)^2-10(4x-1)-24=0
(13)x^4-x^2-6=0
(14)x^2-2√5x+2=0
(15)3x(1-x)=2x-2