Question

from the sum of 5y²+7yz,-5y²-yz-z² and 4yz+3z³, subtract the sum of 5y²-3z³ and 8y² + yz - 6z²​

Answer 1

Answer:

Sum of 3x

2

+2xy−2y

2

and 5y

2

−7xy

=3x

2

+2xy−2y

2

+5y

2

−7xy

=3x

2

−5xy+3y

2

Now

5x

2

+2y

2

−3xy

3x

2

+3y

2

−5xy

− − +

--------------------------

2x

2

−y

2

+2xy

------------------------

=2x

2

+2xy−y

2