Exponents and Powers MCQs with Answers

If $x^2 = 32$, then $x$ is equal to?

• A.$\pm 4\sqrt{2}$
• B.$4\sqrt{2}$
• C.$\pm 16$
• D.$16$

If $-1 < x < y < 0$, which of the following expressions are listed in order from least to greatest?

• A.$x^2y,\; xy^2,\; xy$
• B.$xy,\; x^2y,\; xy^2$
• C.$xy,\; xy^2,\; x^2y$
• D.$xy^2,\; xy,\; x^2y$

What is $a \times a \times a$ in index notation?

• A.$a^3$
• B.$3a$
• C.$a^2$
• D.$a \times 3$

If $0.13 \times P^2 = 13$, then $P =$ ?

• A.$10$
• B.$100$
• C.$\sqrt{10}$
• D.$0.1$

What is the value of $i^{21} + i^{27} + i^{30}$?

• A.$i$
• B.$-i$
• C.$-1$
• D.$1$

Past Paper MCQ

If $x = 0.5$ and $y = 0.2$, then the value of $\sqrt{0.6} \times (3y)^x$ is equal to?

• A.$0.6$
• B.$0.36$
• C.$1.2$
• D.$0.8$

If $y = 3$, then $y^3(y^3 - y) =$ _?

• A.$612$
• B.$624$
• C.$648$
• D.$636$

Find $x$, when $3^x = -2$?

• A.$\frac{1}{9}$
• B.$-\frac{1}{9}$
• C.$-2$
• D.No real solution

The value of $3^0 + 3^1 \times 3^2 - \frac{3^0}{3}$ is:

• A.$8$
• B.$9$
• C.$10$
• D.$\frac{28}{3}$

Find the value of $(25)^2 \times (2)^0$.

• A.$0$
• B.$1250$
• C.$50$
• D.$625$