Question

what should be taken away from 5 x^2 + 4 y^2 + 10 x y to obtain 2 X ^2 + 6 y^2 + 9 x y​​

Answer 1

Answer:

hope this may help you

Step-by-step explanation:

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Answer 2

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Let,The number be 'a' which must be taken away.

As per the question,

$5x^{2} +4x^{2} +10xy-a=2x^{2} +6y^{2} +9xy\\5x^{2}-2x^{2} +4y^{2} +10xy-9xy=a\\3x^{2} -2y^{2}+xy=a$

 Hence, The value which must've taken away from the above mentioned value is $a=3x^{2} -2y^{2}+xy$

Step-by-step explanation:

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