Question

9. Write the formula of (a + b ) square and of (a - b)square​

Answer 1

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[ α + b ]² = α² + 2αb + b²

[ α - b ]² = α² - 2αb + b²

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Answer 2

Answer:

(a+b)²=a²+2ab+b²

(a-b)²=a²-2ab+b²