Me i do not know where to place the algebraic expressions

simplify each equation by adding like terms or multiplying parentheses out.

4(k+9) = 4*k + 4*9 = 4k + 36, so place 4(k+9) below 4k + 36

4k+9k = 13k, so place 4k+9k under 13k

3+4k+6 = 4k+9, so place 3+ 4k + 6 under 4k+9

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.