Just remove the brackets!smclean23 wrote:In the explanation it says (4+a^2)+(4+b^2) simplifies to 8+a^2+b^2....
How does it?
(4+a^2)+(4+b^2) = 4+(a^2)+4+(b^2) = 8+(a^2)+(b^2)
OG 11 #152...Understand everything but.....REALLY EASY!
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(4+a^2)+(4+b^2) = 4+(a^2)+4+(b^2) = 8+(a^2)+(b^2)
