Math Problem Statement

((x^3×y^-2)^-3 × (x^-1×y^2)^2) : (x^3×y4)^-2

Solution

We can simplify the given expression step by step. The expression is:

((x3×y2)3×(x1×y2)2)(x3×y4)2\frac{\left((x^3 \times y^{-2})^{-3} \times (x^{-1} \times y^2)^2\right)}{(x^3 \times y^4)^{-2}}

Step 1: Apply exponents inside the parentheses.

We'll first apply the exponents inside the parentheses for each term.

  1. (x3×y2)3\left(x^3 \times y^{-2}\right)^{-3} means raising both x3x^3 and y2y^{-2} to the power of 3-3: (x3)3=x9,(y2)3=y6(x^3)^{-3} = x^{-9}, \quad (y^{-2})^{-3} = y^6 So, (x3×y2)3=x9×y6(x^3 \times y^{-2})^{-3} = x^{-9} \times y^6

  2. (x1×y2)2\left(x^{-1} \times y^2\right)^2 means raising both x1x^{-1} and y2y^2 to the power of 22: (x1)2=x2,(y2)2=y4(x^{-1})^2 = x^{-2}, \quad (y^2)^2 = y^4 So, (x1×y2)2=x2×y4(x^{-1} \times y^2)^2 = x^{-2} \times y^4

  3. (x3×y4)2\left(x^3 \times y^4\right)^{-2} means raising both x3x^3 and y4y^4 to the power of 2-2: (x3)2=x6,(y4)2=y8(x^3)^{-2} = x^{-6}, \quad (y^4)^{-2} = y^{-8} So, (x3×y4)2=x6×y8(x^3 \times y^4)^{-2} = x^{-6} \times y^{-8}

Step 2: Rewrite the expression using the simplified terms.

Now, substitute the simplified terms into the original expression:

(x9×y6)×(x2×y4)x6×y8\frac{(x^{-9} \times y^6) \times (x^{-2} \times y^4)}{x^{-6} \times y^{-8}}

Step 3: Combine the terms in the numerator.

Use the property of exponents, am×an=am+na^m \times a^n = a^{m+n}, to combine like terms in the numerator:

(x9×x2)=x11,(y6×y4)=y10(x^{-9} \times x^{-2}) = x^{-11}, \quad (y^6 \times y^4) = y^{10} So the numerator becomes: x11×y10x^{-11} \times y^{10}

Step 4: Simplify the entire expression.

Now simplify the entire expression by dividing the numerator by the denominator. Use the property aman=amn\frac{a^m}{a^n} = a^{m-n}:

x11x6=x11(6)=x11+6=x5\frac{x^{-11}}{x^{-6}} = x^{-11 - (-6)} = x^{-11 + 6} = x^{-5} y10y8=y10(8)=y10+8=y18\frac{y^{10}}{y^{-8}} = y^{10 - (-8)} = y^{10 + 8} = y^{18}

Final Answer:

The simplified expression is: x5×y18=y18x5x^{-5} \times y^{18} = \frac{y^{18}}{x^5}

Let me know if you need any clarifications or further details!


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Math Problem Analysis

Mathematical Concepts

Exponentiation
Algebra
Simplifying Expressions

Formulas

a^m × a^n = a^{m+n}
(a^m)^n = a^{m×n}
a^m / a^n = a^{m-n}

Theorems

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Suitable Grade Level

Grades 9-12