Factor completely 10xy + 3y + 20ax + 6a.
(10x − 3)(y − 2a)
(10x − 3)(y + 2a)
(10x + 3)(y + 2a)
(10x + 3)(y − 2a)

Option 3 is correct.

Step-by-step explanation:

The given expression is

This expression can be written as

Take out the common factors from each parenthesis.

Now, take out the common factor (10x+3).

Therefore option 3 is correct.

y=mx+b

step-by-step explanation:

m slope

b y-intercept

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.