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Subtract 7x^2−5xy+8y2 from −2x^2−15xy+9y^2

1 Answer

3 votes

Answer

Subtract
7x^2 -5xy+8y^2 from
-2x^2 -15xy+9y^2

then;


-2x^2 -15xy+9y^2 - (7x^2 -5xy+8y^2)

Remove the bracket we have;


-2x^2 -15xy+9y^2 - 7x^2 + 5xy - 8y^2

Like terms are those terms which have same variable to the same power.

Combine like terms;


-9x^2 -10xy+y^2

Therefore, Subtracting
7x^2 -5xy+8y^2 from
-2x^2 -15xy+9y^2 we get
-9x^2 -10xy+y^2

User Sazzad
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