Question

please solve these questions of 100 points You have to solve only 9 questions. Please answer step by step. I will regard u as brainliest. But Answer FAAAAAST.
ONLY CLASS 8 QUESTIONS.......
$\sqrt[03]{ - 729 \times - 216}$
$\sqrt[03]{392} \times \sqrt[03]{448}$
$\sqrt[3]{ - 500} \times \sqrt[03]{128 }$
solve them must. You should solve all including them
FAAAAAAAAAAAASSSSSSSSSST

Answer 1

35)..
a)
prime factors of 392= 2× 2×2× 7×7
=2^3 ×7^2
therefore 7^2 must be divided to make a perfect cube.

b)
prime factors of 675 =5×5×3×3×3= 5^2×3^3
therefore 5 ^2must be divided to make a perfect cube.

c)
prime factors of 1024= 2^9 ×2
therefore 2 must be divided to make a perfect cube.

d)
prime factors of 218=2×109
therefore 2×109 must be divided to make a perfect cube.

e)
prime factors of5324= 11^3 ×2^2
Therefore 2^2 must be divided from 5324 to makes a perfect cube.

36)
a)216
by prime factorisation method, we have
216= 2×2×2×3×3×3= =2^3×3^3=> 2×3=6

b)1331
by prime factorisation method, we have
1331=11×11×11=11^3=> 11

c)2744
by prime factorisation method, we have
2744=2×2×2×7×7×7 =2^3×7^3=>2×7=14

d)3375
by prime factorisation method, we have
3375= 3×3×3×5×5×5=> 3×5=15

Answer 2

Answer:

if you will solve by this method you can easily get your answer