a) 9(x-3)^2= 4(x+2)^2b) (4x^2-3x-18)^2= (4x^2+3x)^2c) (2x-1)^2= 49d) (5x-3)^2- (4x-7)^2= 0e) (2x+7)^2= 9(x+2)^2f) 4(2x+7)^2= 9(x+3)^2g) (x^2-16)^2- (x-4)^2=0h) (5x^2-2x+10)^2= (3x^2+10x-8)^2
Đăng ký qua Facebook hoặc Google: