Question

Please help me for 50 points!!

simplify: -3 √84x^3

A. -6x√21x
B. -6√21
C. 6x√21x

Answer 1

C

Explanation:

the prime factorization of 84 is 2 x2 x 3 x 7

I can rewrite the problem

-3
`\sqrt{84x^(3) }`

-3
`√((2)(2)(3)(7)xxx)` pull out the pairs

-3(2)x
`√((3)(7)x)`

-6x
`√(21x)`

Helping in the name of Jesus.