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Suppose that j = 4, a = j + 7 and z = a + 5. What is the value of jaz^2?

 Jul 23, 2022
 #1
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jaz^2   = (4) (a+7) (a + 5)^2  =

 

4 ( a + 7) (a^2 + 10a + 25)  =

 

(4a + 28) (a^2 + 10a + 25) =

 

4a^3  + 40a^2  + 100a

+          28a^2   + 280a  + 700

_________________________

 

4a^3 + 68a^2 + 380a + 700

 

 

cool cool cool

 Jul 23, 2022

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