
ա)ax – bx + cx = x(a – b + c)
բ)8abx – 6acy – 10ak = 2a(4bx – 3cy – 5k)
գ)14acx – 21bcy – 7c = 7c(2ax – 3by – 1)
դ)63xy – 84y2 + 98ay = 7y(9x – 12y + 14a)
զ)20ax – 35bx – 40x2 = 5x(4a – 7b – 8x)

ա)a2 – a3 + a4 = a2(1 – a + a2)
բ)x3 + x2 – x = x(x2 + x – 1)
գ)a3 + 4b2a = a(a2 + 4b2)
դ)-5x3y2 – 5x2y = -5x2y(xy + 1)
ե)x3y4 – x2y2 + xy3 = xy2(x2y2 – x + y)
զ)2a3b – 6ab4 + 4a2b3 = 2ab(a2 – 3b3 + 2ab2)
է)-2a2b + 4ab2 – 4b3 = 2b(-a2 + 2ab — 2b2)
ը)16x + 8x2 – 4x3 + 2x4 = 2x(8 + 4x – 2x2 + x3)