Simplify: 5 x (2x + 3y) – 2x (x – 9y) - Vidyadip

Question

Simplify: $5 x (2x + 3y) – 2x (x – 9y)$

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Answer

$5 x (2x + 3y) – 2x (x – 9y)$
$= 10x^2 + 15xy – 2x^2 + 18xy$
$= 10x^2 – 2x^2 + 15xy+ 18xy$
$= 8x^2 + 33xy$

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