a) 5x^2y -10xy^2+15xy b) (xy+xz)+3y+3z c) x^2 - 4y^2+4x+4 d)(x-5)(x+1) - x(x-2)=1 e) 2x(x-5)+3x-15=0 xin giúp em ạ
Phân tích đã thức thành nhân tử 1) 2x+4xy 2) 3cd-6bd^2 3) (x+3)-2(x+3) 4) (2x+1)-5(2x+1) 5)x2-9 6) 4x²-1 7) 9x²-y² 8)(x - 1) ^ 2 - 9 9) (2x - 1) ^ 2 - 4 10) 25-(x-1)^2 11) 16x ^ 2 - (x + 3) ^ 2 12 ) 5a(x + y) + (x + y) 13) x ^ 2 + 2xy + y 14) x ^ 2 - 4x + 4 15) x ^ 2 + 6x + 9 Tìm x biết 1) 4x ^ 2 + 4x = 0 2) 8x ^ 2 - 4x = 0 3) 5x(x - 3) + 7(x - 3) = 0 4) 2x(x - 3) + 5(x - 3) = 0 5) (x - 5) ^ 2 - (x - 2) = 0
Phân tích đã thức thành nhân tử
1) 2x+4xy 2) 3cd-6bd^2 3) (x+3)-2(x+3) 4) (2x+1)-5(2x+1)5)x2-9 6) 4x²-1 7) 9x²-y² 8)(x - 1) ^ 2 - 9 9) (2x - 1) ^ 2 - 4 10) 25-(x-1)^211) 16x ^ 2 - (x + 3) ^ 2 12 ) 5a(x + y) + (x + y) 13) x ^ 2 + 2xy + y 14) x ^ 2 - 4x + 4 15) x ^ 2 + 6x + 9Tìm x biết 1) 4x ^ 2 + 4x = 0 2) 8x ^ 2 - 4x = 0 3) 5x(x - 3) + 7(x - 3) = 0 4) 2x(x - 3) + 5(x - 3) = 0 5) (x - 5) ^ 2 - (x - 2) = 0