if 5 x minus 2 Y is equal to 7 and X Y is equal to 2 find the value of 5 x + 2 y ka whole square
Answers
Answered by
3
5x-2y=7
XY=2
AS WE KNOW THAT
(a+b)^2-(a-b)^2=4ab
(5x+2y)^2=4xy+(5x-2y)^2
=4(2)+(7)^2
=8+49
=55
XY=2
AS WE KNOW THAT
(a+b)^2-(a-b)^2=4ab
(5x+2y)^2=4xy+(5x-2y)^2
=4(2)+(7)^2
=8+49
=55
Answered by
1
Answer
55
Explanation:
5x-2y=7
xy=2
As we know that
(a+b)^2-(a+b)^2=4ab
5x+2y=4x+(5x+2y)^2
4×2+7^2
8+49
55 ANSWER...... please mark me as a brain list
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