A basic algebra question (no calculator)

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SUMMARY

The discussion centers on simplifying the expression 3√-27x^6 without a calculator. The key steps involve rewriting the expression as (-27x^6)^(1/3) and recognizing that -27^(1/3) equals -3. The final simplified form is -3x^2. Participants clarified the evaluation of cube roots, leading to a better understanding of the solution process.

PREREQUISITES
  • Understanding of cube roots and their properties
  • Familiarity with algebraic expressions and simplification techniques
  • Basic knowledge of exponent rules
  • Ability to manipulate variables in algebraic contexts
NEXT STEPS
  • Study the properties of cube roots in algebra
  • Practice simplifying various algebraic expressions involving roots
  • Learn about exponent rules and their applications in simplification
  • Explore advanced algebra topics, such as polynomial factorization
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Students studying algebra, educators teaching algebra concepts, and anyone looking to improve their skills in simplifying expressions involving roots and exponents.

Naga360
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Homework Statement



Simplify 3√-27x^6

I'm very confused on how to evaluate what -27^(1/3) is without a calculator. I think I'm fine with the other steps. if someone could explain this to me I would really appreciate it.



The Attempt at a Solution


= 3√-27x^6
= (-27x^6)^(1/3)
= -27^(1/3)x^2
 
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Naga360 said:

Homework Statement



Simplify 3√-27x^6

I'm very confused on how to evaluate what -27^(1/3) is without a calculator. I think I'm fine with the other steps. if someone could explain this to me I would really appreciate it.



The Attempt at a Solution


= 3√-27x^6
= (-27x^6)^(1/3)
= -27^(1/3)x^2

[itex]-27^\frac{1}{3} = -3^{3*\frac{1}{3}}[/itex]
 
oh I get it now thanks a lot :)
 

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