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x(3x^2-27x+54)
x(3(x^2-9x+18)
↓ ↓
y +4 = 4x
y -2=-2x
------
2x
Rpta: (y+4)(y-2)
b) xyz+cwxz+ay+acw
(xyz)(cwxz) + (ay)(acw)
xy(y+cw) + a(y+cw)
Rpta:( xy+a)(y+cw)
c)x² - 4y²
Rpta: (x-2y)(x+2y)
d) 3x³ - 27x² + 54x
3x(x²-9x+18x)
3x(x-6)(x-3)
Rpta: (3x)(x-6)(x-3)