subtract 5x2-4y2+6y-3 from 7x2-4xy+8y2+5x-3y
Answers
Answered by
37
7x2-4xy+8y2+5x-3y - 5x2+4y2-6y+3
=2x2+12y2-9y+3-4xy+5x
Answered by
129
Answer:
2x²+12y²-4xy+5x-9y+3
Explanation:
Let A = 5x2-4y2+6y-3
B = 7x2-4xy+8y2+5x-3y
According to the problem given,
B-A = 7x²-4xy+8y²+5x-3y -
(5x²-4y²+6y-3 )
= 7x²-4xy+8y²+5x-3y -5x²+4y²-6y+3
= (7-5)x²+(8+4)y²-4xy+5x-(3+6)y+3
= 2x²+12y²-4xy+5x-9y+3
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