Question

(a-b)²=(a+b)²-4ab evaluate the following
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Answer 1

Step-by-step explanation:

a+b)

2

=4ab

⇒a

2

+b

2

+2ab=4ab

⇒a

2

+b

2

−2ab=0

⇒(a−b)

2

=0

⇒a=b

Answer 2

${(a - b)}^{2} = {(a + b)}^{2} - 4ab \\ {a}^{2} + {b}^{2} - 2ab = {a}^{2} + {b}^{2} + 2ab - 4ab \\ {a}^{2} + {b}^{2} - 2ab = {a}^{2} + {b}^{2} - 2ab$

Answer is 0

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