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Simplify the algebraic expressions by removing grouping symbols.

-2(x2 – y2 + xy) – 3(x2 +y2 – xy)

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Given – 2(x2 – y2 + xy) – 3(x2 +y2 – xy)

Since the ‘–’ sign precedes the parentheses, we have to change the sign of each term in the parentheses when we remove them. Therefore, we have

= -2x+ 2y2 – 2xy – 3x2 – 3y2 + 3xy

On rearranging,

= -2x2 – 3x2 + 2y2 – 3y– 2xy + 3xy

On simplifying, we get

= -5x– y2 + xy

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