Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Express the following fraction in simplest form, only using positive exponents.

(3x^(-9))/((-4x^(-5))^(2))
Answer:

Express the following fraction in simplest form, only using positive exponents.\newline3x9(4x5)2 \frac{3 x^{-9}}{\left(-4 x^{-5}\right)^{2}} \newlineAnswer:

Full solution

Q. Express the following fraction in simplest form, only using positive exponents.\newline3x9(4x5)2 \frac{3 x^{-9}}{\left(-4 x^{-5}\right)^{2}} \newlineAnswer:
  1. Write Expression: Write down the given expression and identify the negative exponents.\newlineThe given expression is (3x9)/((4x5)2)(3x^{-9})/((-4x^{-5})^{2}).\newlineWe need to simplify this expression and express it with only positive exponents.
  2. Apply Negative Exponent Rule: Apply the negative exponent rule, which states that an=1ana^{-n} = \frac{1}{a^n}, to rewrite the expression with positive exponents.\newlineFor the numerator, we have 3x93x^{-9} which becomes 3x9\frac{3}{x^9}.\newlineFor the denominator, we have (4x5)2(-4x^{-5})^2. First, we'll deal with the exponent of 5-5, which gives us (4x5)2\left(-\frac{4}{x^5}\right)^2.
  3. Simplify Denominator: Simplify the denominator by squaring both the coefficient and the variable part.\newline(4/(x5))2(-4/(x^5))^2 becomes (4)2/(x5)2(-4)^2/(x^5)^2, which simplifies to 16/(x10)16/(x^{10}).
  4. Combine Fractions: Combine the simplified numerator and denominator to form a single fraction.\newlineWe now have (3x9)/(16x10)(\frac{3}{x^9})/(\frac{16}{x^{10}}).
  5. Divide Fractions: Divide the fractions by multiplying the numerator by the reciprocal of the denominator.\newlineThis becomes (3x9)×(x1016)(\frac{3}{x^9}) \times (\frac{x^{10}}{16}).
  6. Simplify Expression: Simplify the expression by canceling out common factors and applying the laws of exponents.\newlineThe x9x^9 in the numerator and x10x^{10} in the denominator can be simplified to x(109)x^{(10-9)} in the numerator, which is x1x^1 or simply xx.\newlineThe expression now is (3×x)/16(3 \times x)/16.
  7. Final Expression: Write the final simplified expression with only positive exponents.\newlineThe final simplified expression is (3x16)(\frac{3x}{16}).

More problems from Multiplication with rational exponents