Answer:
Step-by-step explanation:
13.
(4r⁰)⁴
= (4×1)⁴
= (4)⁴
= 256
14.
(4a³)²
[tex]= 4^2a^{(3\times 2)}[/tex]
= 16 a⁶
15.
(3k⁴)⁴
[tex]= 3^4 k^{4*4}[/tex]
[tex]= 81 \ k^{16}[/tex]
16.
(4xy)⁻¹
[tex]= \dfrac{1}{4 xy}[/tex]
17.
(2b⁴)⁻¹
[tex]= \dfrac{1}{2 \ b^4}[/tex]
18.
(x²y⁻¹)²
[tex]=\Big ( \dfrac{x^2}{y} \Big) ^ 2[/tex]
[tex]=\Big ( \dfrac{x^4}{y^2} \Big)[/tex]
