Jambmaths question:
Factorize completely$4abx-2axy-12{{b}^{2}}x+6bxy$
Option A:
$2x(a-3b)(2b-y)$
Option B:
$2x(3b-a)(2b-y)$
Option C:
$2x(a-3b)(y-2b)$
Option D:
$2x(2b-a)(3b-y)$
Jamb Maths Solution:
$\begin{align} & 4abx-2axy-12{{b}^{2}}x+6bxy=4abx-12{{b}^{2}}x-2axy+6bxy \\ & 4abx-2axy-12{{b}^{2}}x+6bxy=4bx(a-3b)-2xy(a-3b) \\ & 4abx-2axy-12{{b}^{2}}x+6bxy=2x(b-y)(a-3b) \\\end{align}$
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