Plz guys help. with step by step – InterviewSolution

1.

Plz guys help. with step by step

Answer»

you have not written the QUESTION I mean HEADING . but from my side I am doing

Step-by-step EXPLANATION:

-7x2-3xy+4y2

-4x2+5xy-9y2

5x2-xy+2y2

___________

-6x2+1xy-3y2

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