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13-01-2018
Mathematics

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Evalue 5a+3b and (5+a)(3+b) for a=2 and b=4. How is the order of steps diferent for the two expression

Respuesta :

13-01-2018

5a+3b = 24
(5+a)(3+b) = 49

The order of steps are different because one requires multiplication then addition while the other one requires addition then multiplication. But one sure thing is that they both need substitution.

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