Question

cube root of minus 343 with prime factorisation method

Answer 1

Answer:

Step-by-step explanation:

343/7=49

49/7=7

SO THE CUBE ROOT OF MINUS 343 IS -7

Answer 2

Answer:

-7

Step-by-step explanation:

(i) Make a group of 3 prime numbers which gives the product -343,

Cube root of -343 = Cube root of -7 x -7 x -7 ( As 7 x 7 x 7 = 343 )

-343 = -7 x -7 x -7 ( Cube roots get cancelled )

(ii) Collect one prime factor from each group

NOTE : If two or more groups are formed, then collect and multiply a single number from each group