Simplify the expression. (c^-6)(2c^7)

a. 2c
b. 3c
c. 3c^-42
d. 2c^-42

Choice a is correct answer.

Step-by-step explanation:

We have given an expression.

(c⁻⁶)(2c⁷)

We have to simplify above expression.

We use following formula to simplify this expression.

×=

Using above formula in given expression,we get

2c⁻⁶⁺⁷

2c¹

2c which is required answer.

D.12

Step-by-step explanation:

Multiply both sides by 6

(6)1/2x+(6)3=(6)2/3x+(6)1

Simplify

3x+18=4x+6

Move 4x to the left

3x-4x+18=6

-x+18=6

-18 -18

-x=-12

Change the signs

X=12