Question

Subtract −3x2+5xy+4y2 from the sum of x 2−2xy+y2 and 3x2+4xy−y2

Plz answer for 7th grade with full explaination

Answer 1

first we need to add the second equation and third equation

x2-2xy+y2+3x2+4xy-y2

4x2+2xy

now we need to substract this equation to the first equation

4x2+2xy-(-3x2+5xy+4y2)

4x2+2xy+3x2-5xy-4y2

7x2-3xy-4y2

Answer 2

Answer:

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Step-by-step explanation:

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