- #1

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what is 2a^2 + b^2

i'm having so much trouble with this

i think we first go (6.0+/-0.1)^2 then times it by 2, and add (17.5+/-0.3)^2...i tried this but couldn't get the right answer...what am i doing wrong?

...ANY help would be greatly appreciated...i feel if someone will help me with just this question i can figure out how to do the rest. thank you in advance!!