Maths / Cube and Cube Roots / Cube Root by Prime Factorisation

QUESTION
 

Evaluate :

  • large 125 sqrt [3]{a^6}-sqrt [3]{125a^6}
  • large sqrt [3]{700times2times49times5}
  • EXPLANATION
    Explain TypeExplanation Content
    Text

    (i): : : 125sqrt [3]{a^6}-sqrt [3]{125a^6}

            =125a^2-5a^2=120a^2

    (ii): : : : : : : sqrt [3]{700times2times49times5}

                =sqrt [3]{7times2times2times2times5times5times7times7times5}

                =7times2times5=70

    View Contents
    (Concept based Learning and Testing for [6th - 10th], NTSE, Bank & Govt. Exams)
    Self Learning
    Testimonials
    No Preview
    Student Feedback on Methodology - Ayan ghosh C/o ABHYAS Academy
     8th
    Abhyas methodology is excellent. Its teaching and assignment based technique is very fine.
    Back
    Courses We Offer
    (Concept based Learning and Testing for [6th - 10th], NTSE, Bank & Govt. Exams)