Which expression is equivalent to 9x^5+3x(4x^4-3x^2)^2

Step-by-step explanation:

The initial expression is:

First expand the squared part (inside the parenthesis):

Then, multiply the terms inside the parenthesis by 3x applying the distributive property:

Finally add terms with the same exponent

D. 48x^9-72x^7+36x^5

Step-by-step explanation:

Just took it. Edg 2020. Hope this helps :)

Btw Look at you doing your school work looking smart! I see youuu! (even if you are cheating a lil but its ok im doing the same xD)

side side side

side angle angle

angle side angle

side angle side

step-by-step explanation:

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.