kennyoj kennyoj

19-08-2014
Mathematics

contestada

Evaluate 5a+3b and (5+a)(3+b) For a =2 and b=4. How Is the order Of the steps different For the two expressions?

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kate200468 kate200468

19-08-2014

[tex] 5a+3b=5\cdot2+3\cdot4=10+12=22\\\\(5+a)(3+b) =(5+2)\cdot(3+4)=7\cdot7=49[/tex]

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lisaevans661 lisaevans661

19-08-2014

5(2)+3(4)=10+12=22
(5+2)(3+4)=(7)(12)=84

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