Question

Please help me need before Monday

Answer 1

D 13

Explanation:

(b^4)^4 b^5 * b^x

-------------- = ----------------

b^2 b^4

We know that a^c^d = a^ (c*d)

b^(4*4) b^5 * b^x

-------------- = ----------------

b^2 b^4

b^16 b^5 * b^x

-------------- = ----------------

b^2 b^4

We know that a^ c * a^d = a^ (c+d)

b^16 b^(5+x)

-------------- = ----------------

b^2 b^4

We know that a^c / a^d = a^ (c-d)

b^(16-2) = b^(5+x-4)

b^14 = b^(1+x)

Since the base is the same, the exponent must be the same

14=1+x

Subtract 1 from each side

14-1 = 1+x-1

13 =x