1.

If (5/2)^3 * (5/2)^2a-5 =(5/2)^8 , find a

Answer»

Answer:

a = 5

Step-by-step EXPLANATION:

(5/2)^3 * (5/2)^2a-5 = (5/2)^8

(5/2)^(3+2a-5) = (5/2)^8

(5/2)^(2a-2) = (5/2)^8

2a-2 = 8

2a = 8+2

2a = 10

a = 10 ÷ 2

a = 5



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