If 8 x-1-64- what is the value of 32 x-1 -ab 3c 9d 27

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(x±a)(x±b) = x²±(a+b)x+ab.

If 8 x+1=64, ...

Question

If $8^{x + 1}$ = 64 , what is the value of $3^{2 x + 1}$ ?

(a) 1
(b) 3
(c) 9
(d) 27

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Solution

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If $8^{x + 1}$ = 64, what is the value of $3^{2 x + 1}$ ?

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