Use the distributive property to express the GCF and the sum of whole numbers. Which expression is equivalent to 48 + 78? A.) 6(8 + 13) B.) 2(24 + 39) C.) 3(16 + 26) D.) 8(6 + 9)

A. 6(8+13)

Step-by-step explanation:

As far as I know, when I distribute each one, they all come out with the same answer except for D in which it doesn't equal to 48 + 78.  I say A is the answer because of its GCF in which it is the most you can distribute for.

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.