Exponents & Powers Quiz 2

Expanded form of 89325 is …

$r\times r\times....\times r$ (7 times) = ……?

If a = 3, b = 2 then the value of $a^b+b^a$ = ……?

If a = 3, b = 2 then $(a-b)^a$ = ….?

The exponent of $(5\,ab)^3$ is …

Which of the following is correct?

If $k^{15}\times k^x=k^{31} \Rightarrow x$ = ….?

$(2^2)^3$ = ……

Which of the following is not true?

Which of the following is true?