Add the given polynomials : 2 y^2+7 y+5 ; 3 y+9 ; 3 y^2-4 y-3 - Vidyadip

Question

Add the given polynomials : $2 y^2+7 y+5 ; 3 y+9 ; 3 y^2-4 y-3$

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Answer

$\left(2 y^2+7 y+5\right)+(3 y+9)+\left(3 y^2-4 y-3\right)$
$=2 y^2+7 y+5+3 y+9+3 y^2-4 y-3$
$=2 y^2+3 y^2+7 y+3 y-4 y+5+9-3$
$=5 y^2+6 y+11$

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