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.

(-2j^(9))/(-5(j^(-1))^(3))
Answer:

Express the following fraction in simplest form, only using positive exponents.\newline2j95(j1)3 \frac{-2 j^{9}}{-5\left(j^{-1}\right)^{3}} \newlineAnswer:

Full solution

Q. Express the following fraction in simplest form, only using positive exponents.\newline2j95(j1)3 \frac{-2 j^{9}}{-5\left(j^{-1}\right)^{3}} \newlineAnswer:
  1. Write & Identify Negative Exponent: Write down the given expression and identify the negative exponent.\newlineThe given expression is (2j9)/(5(j1)3)(-2j^{9})/(-5(j^{-1})^{3}).\newlineWe need to simplify this expression and express it with only positive exponents.
  2. Simplify Denominator: Simplify the denominator.\newlineThe denominator is 5(j1)3-5(j^{-1})^{3}. We need to apply the power to a power rule, which states that (am)n=amn(a^{m})^{n} = a^{m*n}.\newlineSo, (j1)3=j13=j3(j^{-1})^{3} = j^{-1*3} = j^{-3}.\newlineNow the expression becomes (2j9)/(5j3)(-2j^{9})/(-5j^{-3}).
  3. Convert Negative to Positive Exponent: Convert the negative exponent to a positive exponent.\newlineTo convert a negative exponent to a positive exponent, we use the rule that an=1ana^{-n} = \frac{1}{a^n}.\newlineSo, j3=1j3j^{-3} = \frac{1}{j^3}.\newlineNow the expression becomes 2j95×1j3\frac{-2j^{9}}{-5 \times \frac{1}{j^3}}.
  4. Multiply by Reciprocal: Multiply the numerator by the reciprocal of the denominator.\newlineTo divide by a fraction, we multiply by its reciprocal. So we multiply 2j9-2j^{9} by the reciprocal of 5×1j3-5 \times \frac{1}{j^3}, which is 15j3-\frac{1}{5j^3}.\newlineThe expression becomes (2j9)×(15j3)(-2j^{9}) \times (-\frac{1}{5j^3}).
  5. Simplify by Multiplying Numerators: Simplify the expression by multiplying the numerators and denominators.\newlineWhen we multiply fractions, we multiply the numerators together and the denominators together.\newlineThe expression becomes (2×1)×(j9/(5j3))(-2 \times -1) \times (j^{9} / (5j^3)).
  6. Simplify Constants & Apply Quotient Rule: Simplify the constants and apply the quotient rule for exponents.\newlineThe constants simplify to 2×1=22 \times 1 = 2.\newlineThe quotient rule for exponents states that a(m)/a(n)=a(mn)a^{(m)} / a^{(n)} = a^{(m-n)} when m > n.\newlineSo, j(9)/j(3)=j(93)=j(6)j^{(9)} / j^{(3)} = j^{(9-3)} = j^{(6)}.\newlineNow the expression becomes 2×j(6)/52 \times j^{(6)} / 5.
  7. Write Final Simplified Expression: Write the final simplified expression.\newlineThe final simplified expression is 2j65.\frac{2j^{6}}{5}.

More problems from Multiplication with rational exponents