please tell me correct answer
I will mark you as a brainliest
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Step-by-step explanation:
Given that,
A = a² - b² + 2ab, B = a² + 4b² - 6ab and C = a² + 4ab.
∴ A + B + C = a² - b² + 2ab + a² + 4b² - 6ab + a² + 4ab
= ( a² + a²+ a² ) + ( - b² + 4b² ) + ( 2ab - 6ab + 4ab ) ( ∵ like terms adding)
= 3a² + 3b² + ( 6ab - 6ab )
= 3a² + 3b² + 0
= 3a² + 3b² is the answer
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