Question 88 xiiFactorise the following expression-1 x-m y-m x-l y

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Standard IX

Mathematics

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Question 88 x...

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Question 88 (xii)

Factorise the following expression.

$l x + m y + m x + l y$

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Solution

We have, $l x + m y + m x + l y$
$l x + m x + m y + l y = x (l + m) + y (m + l) = (l + m) (x + y)$

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Question 88 (xii) Factorise the following expression. lx+my+mx+ly

We have, lx+my+mx+ly lx+mx+my+ly=x(l+m)+y(m+l)=(l+m)(x+y)

Question 88 (xii)

Factorise the following expression.

$l x + m y + m x + l y$

We have, $l x + m y + m x + l y$
$l x + m x + m y + l y = x (l + m) + y (m + l) = (l + m) (x + y)$