1.

If $$ {3^{a+3} 4^{a+6} 25^{a+1} over{27}^{a-1} 8^{a-2} 125^{a+4}}={4 over15^{26}}$$ then the value of $$ { sqrt{a+9}}$$.

A. 8
B. 5
C. 6
D. 4
Answer» C. 6


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