Math, asked by ravvikumar007, 3 months ago

add a²+b² to the sum of 5a²_b² + 6 and _4a²_b²+15.

Answers

Answered by saifulsk07684
0

Answer:

What must be subtracted from a

2

+b

2

+2ab to get −4ab+2b

2

?

Step-by-step explanation:

let x must be subtracted

⟹a

2

+b

2

+2ab−x=−4ab+2b

2

⟹x=a

2

+b

2

+2ab−(−4ab+2b

2

)

It can be written as

x=a

2

+b

2

+2ab+4ab−2b

2

⟹x=a

2

+(b

2

−2b

2

)+(2ab+4ab) (combining like terms)

⟹x=a

2

−b

2

+6ab

∴a

2

−b

2

+6ab must be subtracted

Please mark the answer as brainliest answer

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