a²-b² =
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Answer:
(a+b)(a-b) like please........
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Step-by-step explanation:
a2 + b2 = c2. We say “The sum of the squares of the legs of a right triangle equals the square of its hypotenuse.” Good hint. Note that the hypotenuse sits by itself on one side of the equation a2 + b2 = c2.
What is the formula for a²+b²
Soln: Formula for a²+b² can be given by two types.
(i). a²+b² = (a+b)² - 2ab
= a²+2ab+b²-2ab
= a²+b²
=> LHS = RHS
Therefore, hence proved!
(ii). a²+b² = (a-b)² + 2ab
= a²-2ab+b²+2ab
=> LHS = RHS
Therefore, hence proved!
Hence, a²+b² = (a+b)² - 2ab
'OR'
a²+b² = (a-b)² + 2ab
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