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Find a + b ,4 a +7 b , | a |, and | a b |. (Simplify your answer completely.) a = 3, 4
Find
a+b,4a+7b, |a|, and |ab|.
(Simplify your answer completely.)
a=
3, 4
, b=
9,1
a+b | = | |
4a+7b | = | |
|a| | = | |
|ab| | = |
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