Question

♡Hey Guys♡
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♥Good Morning♥
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Please Refer to the attachment and solve the question please!
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❎NO SPAMMING❎​

Answer 1

Answer:

Solution

$3 {x }^{2} + 2 {y}^{2} - 5xy - 25 \: to \: get \: - {x}^{2} - {y}^{2} + 2xy + 10$

Let te value of taken away be T .

Now

$( 3 {x}^{2} + 2 {y}^{2} - 5xy - 25) - t = ( - {x}^{2} - {y}^{2} + 2xy + 10) \\ - t = 3 {x}^{2} + 2 {y}^{2} - 5xy - 25 + {x}^{2} + {y}^{2} - 2xy - 10 \\ - t = 3 {x}^{2} + {x}^{2} + 2 {y}^{2} + {y}^{2} - 5xy - 2xy - 25 - 10 \\ t = 4 {x}^{2} + 3 {y}^{2} - 7xy - 35$

Hey bro your answer is T

$4 {x}^{2} + 3 {y}^{2} - 7xy - 35$

Hope it is helpful for you