samim13 samim13

17-01-2020
Mathematics

contestada

What is 4(a5+7)+6(b7-5)

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nganlef nganlef

17-01-2020

4a5+28+6b7-30
4a5+6b7-2<—- this is a to the power of 5 , b to the power of 7
(Is that 5a or a to the power of 5 )
20a+28+42b-30
20a+42b-2<—— this is 5a , 7b

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