14. Simplify:
(i) (a + b)^2 + (a - b)^2
Answers
Answered by
3
Answer:
(a+b)^2+(a-b)^2
a^2+b^2+2ab+(a^2+b^2-2ab)
2(a^2+b^2)
Answered by
2
Answer:
(a+b) 2 +( a-b) 2
a2 +2ab +b2 +a2 - 2ab +b2
=2a2+2b2
=2(a2+b2) ans.
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