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Lesson 6: Exponents — Practice Questions

  1. 1. Which statement correctly identifies the error in the calculation $x^0 = 0$?

    • A. Any number to the power of 0 is 0.
    • B. $x^0$ is undefined.
    • C. Any non-zero number to the power of 0 is 1.
    • D. $x^0$ simplifies to x.
  2. 2. Simplify the expression $(8x)^0$ without using zero exponents, assuming $x \neq 0$. $ \_\_\_ $

  3. 3. Evaluate the expression $(-17)^0$. $ \_\_\_ $

  4. 4. The property $a^0 = 1$ for any non-zero number $a$ is a logical consequence of which exponent law?

    • A. The product of powers law, $a^m \cdot a^n = a^{m+n}$
    • B. The power of a power law, $(a^m)^n = a^{mn}$
    • C. The quotient of powers law, $\frac{a^m}{a^n} = a^{m-n}$
    • D. The power of a product law, $(ab)^n = a^n b^n$
  5. 5. Calculate the value of the expression $12 + (4y)^0$, assuming $y \neq 0$. $ \_\_\_ $

  6. 6. For the expression $(x-3)^0$ to be equal to 1, what value must $x$ NOT be?

    • A. 0
    • B. 1
    • C. 3
    • D. -3
  7. 7. What is the value of the expression $-5^2$? The answer is ___.

  8. 8. What is the value of $(-3)^3$?

    • A. 27
    • B. -27
    • C. 9
    • D. -9
  9. 9. Which statement correctly compares the values of $-4^2$ and $(-4)^2$?

    • A. $(-4)^2 < -4^2$
    • B. $(-4)^2 = -4^2$
    • C. $(-4)^2 > -4^2$
    • D. The values are equal and positive