Show that (a+b)^2 +(a - b)^2 = 2(a^2 +b^2).
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Answered by
4
Step-by-step explanation:
=(a+b)^2 +(a - b)^2
=a²+b²+2ab+a²+b²-2ab
=2a²+2b²
=2(a²+b²)
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Answered by
2
Answer:
Step-by-step explanation:
(a+b)² + (a-b)²
= a² + b² + 2ab + a² + b² - 2ab
= 2a² + 2b² (Cancel out 2ab)
= 2(a² + b²)
(a+b)² + (a-b)² = 2(a²+b²)
LHS = RHS
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