Math Problem Statement

(-2xy) to the power of 4 times (-3x to the power of 2) to the power of3

Solution

Let's simplify the expression step by step:

Given:
(2xy)4×(3x2)3(-2xy)^4 \times (-3x^2)^3

Step 1: Simplify each term separately

Term 1: (2xy)4(-2xy)^4

Use the rule of exponents (ab)n=anbn(ab)^n = a^n \cdot b^n:
(2xy)4=(2)4x4y4(-2xy)^4 = (-2)^4 \cdot x^4 \cdot y^4
Since (2)4=16(-2)^4 = 16, the first term becomes: (2xy)4=16x4y4(-2xy)^4 = 16x^4y^4

Term 2: (3x2)3(-3x^2)^3

Again, use the rule (ab)n=anbn(ab)^n = a^n \cdot b^n:
(3x2)3=(3)3(x2)3(-3x^2)^3 = (-3)^3 \cdot (x^2)^3
Since (3)3=27(-3)^3 = -27 and (x2)3=x23=x6(x^2)^3 = x^{2 \cdot 3} = x^6, the second term becomes: (3x2)3=27x6(-3x^2)^3 = -27x^6

Step 2: Multiply the two terms

Now multiply the results from Step 1:
(16x4y4)(27x6)(16x^4y^4) \cdot (-27x^6)

Combine coefficients: 16(27)=43216 \cdot (-27) = -432

Combine xx-terms using the rule xmxn=xm+nx^m \cdot x^n = x^{m+n}:
x4x6=x4+6=x10x^4 \cdot x^6 = x^{4+6} = x^{10}

The y4y^4 term remains as it is because there are no other yy-terms:
y4y^4

Final Expression:

432x10y4-432x^{10}y^4


Let me know if you need further clarification or have any questions!

Related Questions:

  1. What is the general rule for simplifying powers of products, like (ab)n(ab)^n?
  2. How do negative exponents affect the results of expressions?
  3. What happens if one of the bases in the problem is zero?
  4. Can this process be applied to fractional exponents? How?
  5. What are some real-life applications of exponential expressions?

Tip:

Always break down powers step by step and apply the exponent rules systematically to avoid mistakes.

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Math Problem Analysis

Mathematical Concepts

Exponents
Algebra
Multiplication of Terms with Exponents

Formulas

(ab)^n = a^n * b^n
x^m * x^n = x^(m+n)

Theorems

Exponentiation rules for products

Suitable Grade Level

Grades 8-10