Answers

2015-07-23T22:17:07+08:00
A squared plus a squared is 2 times squared.
Example;
x^2 + x^2 = 2x^2 

But a squared multiplied by a squared is as follows
Example;
x^2 ( x^2) = x^4
*Add the exponents.

Note: Imagine x^2 as "x raised to the exponent 2"
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2015-07-24T02:01:49+08:00
A^2 + a^2 = 2a^a

add a + a = 2a
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