How can exponents be simplified?

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SUMMARY

The discussion focuses on simplifying the expression [-6(-4)^(n-1)] - 9 + [8(-4)^(n-2)] + 12. The correct simplification results in 2(-4)^n + 3. Participants emphasize the importance of understanding exponent rules, specifically X^(a+b) = (X^a)(X^b) and X^(a+b) + X^(a+c) = X^a(X^b + X^c), as well as recognizing that 4 can be expressed as 2^2 for further simplification.

PREREQUISITES
  • Understanding of exponent rules, specifically X^(a+b) = (X^a)(X^b)
  • Ability to factor expressions involving exponents
  • Familiarity with polynomial simplification techniques
  • Knowledge of basic algebraic manipulation
NEXT STEPS
  • Study advanced exponent rules and their applications in algebra
  • Practice polynomial factoring techniques using various expressions
  • Explore the relationship between exponents and logarithms
  • Learn about the properties of negative bases in exponentiation
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Students, educators, and anyone looking to enhance their understanding of algebraic expressions and exponent simplification techniques.

Thunderer
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Well here is the beginning of it:

[-6(-4)^(n-1)] - 9 + [8(-4)^(n-2)] + 12

This is suppose to simplify to 2(-4)^2 + 3.

But I have no idea how that 2(-4)^2 was obtained. Could anybody explain how that would work?
 
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i'm going to assume you meant 2(-4)^n not ^2, because otherwise you'd've simplified further, and besides, ^n is the correct answer. do you know how exponentials work and how to factor? that's all they did, and then simplified.

use these rules:

X^(a+b) = (X^a)(X^b)
and by that:
X^(a+b) + X^(a+c) = X^a(X^b + X^c)
 
It also helps to know that 4= 2^2!
 

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