Question

Class 7th,
Chapter 12
Algebraic Expression
Simplify :-
b. 2x²-y²+2xy–(5x²- y²+4xy)

Can anyone can solve this question very clearly . It's very urgent .​

Answer 1

Answer:

-3x²-2xy

Step-by-step explanation:

=2x²-y²+2xy-5x²+y²-4xy

=-3x²-2xy

*You may get a point that why I haven't written anything with the variable (y²). As, (-y and +y) are cancelled. So, no need to write..

Hope it helps you...

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Answer 2

Answer:

$2 {x}^{2} - {y}^{2} + 10 {x}^{3} y + 2xy {?}^3 - 8 {x}^{2} y$

I hope my answer is right

Step-by-step explanation:

ignore that ? mark