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Factorise the following expressions by splitting the middle term.
$4x^2+ 12xy + 9y^2$
Given:
$4x^2+ 12xy + 9y^2$
To do:
We have to factorise the given expression by splitting the middle term.
Solution:
$4x^2+ 12xy + 9y^2=4x^2+6xy+6xy+9y^2$
$=2x(2x+3y)+3y(2x+3y)$
$=(2x+3y)(2x+3y)$
$=(2x+3y)^2$
Therefore, $4x^2+ 12xy + 9y^2=(2x+3y)^2$.
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