1. Factorize the expression $ 3 x y - 2 + 3 y - 2 x $
A) $ (x+1),(3 y-2) $
B) $ (x+1),(3 y+2) $
C) $ (x-1),(3 y-2) $
D) $ (x-1),(3 y+2) $

2. Factorize the expression $ \mathrm{xy}-\mathrm{x}-\mathrm{y}+1 $
A) $ (x-1),(y+1) $
B) $ (x+1),(y-1) $
C) $ (x-1),(y-1) $
D) $ (x+1),(y+1) $


Given: Two statements


To find: The correct options as answers


Solution:


1. Factorize the expression

$ 3 x y - 2 + 3 y - 2x$

$3xy - 2 + 3 y - 2x$

=$3xy + 3 y - 2 - 2x$

=$3y(x + 1) - 2(x + 1)$

=$(3y - 2)(x + 1)$

Hence, the factors of $ 3xy - 2 + 3 y  -2x$

are $(x+1)$ and $(3y-2)$

So option A is CORRECT

2. Factorize the expression

$ x y - x -  y + 1$

$ x y - x -  y + 1$

=$ x (y - 1) - 1 (y - 1)$
= $(x - 1)(y - 1)$
Hence the factors of $ x y - x -  y + 1$ are
$(x - 1)$ and $(y - 1)$
So option C is CORRECT

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Updated on: 10-Oct-2022

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