Simplifying Exponential Expressions
This article will guide you through the process of simplifying the expression (4x³y⁶)^-2 + (2x²y⁴)^-3.
Understanding the Properties of Exponents
To simplify this expression, we need to recall the following rules of exponents:
- Product of Powers: (a^m) * (a^n) = a^(m+n)
- Power of a Product: (a*b)^m = a^m * b^m
- Power of a Power: (a^m)^n = a^(m*n)
- Negative Exponent: a^-m = 1/a^m
Step-by-Step Simplification
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Apply the Power of a Power Rule:
- (4x³y⁶)^-2 = 4^-2 * (x³)^-2 * (y⁶)^-2 = 1/16 * x^-6 * y^-12
- (2x²y⁴)^-3 = 2^-3 * (x²)^-3 * (y⁴)^-3 = 1/8 * x^-6 * y^-12
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Combine the Simplified Terms:
- (1/16 * x^-6 * y^-12) + (1/8 * x^-6 * y^-12)
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Use the Negative Exponent Rule:
- (1/16 * 1/x⁶ * 1/y¹²) + (1/8 * 1/x⁶ * 1/y¹²)
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Simplify the Expression:
- (1/16x⁶y¹²) + (1/8x⁶y¹²) = (1 + 2) / (16x⁶y¹²) = 3 / (16x⁶y¹²)
Conclusion
Therefore, the simplified form of the expression (4x³y⁶)^-2 + (2x²y⁴)^-3 is 3 / (16x⁶y¹²). Remember to always follow the order of operations and apply the appropriate exponent rules when simplifying expressions.