Build each fraction equivalent fraction that has an lcd as the denominator. lcd= 56 5/28 7/8

answer:

so what you do is you line up 56 and 5 and 28 and 7 and 8 sepretly not as a fractions and then find out thir numbers and what they are even to then when you get your 2 numbers see which one is less and put the lesser one at the bottom and the bigger on at the top and if its wrong put the less one at the top and bigger one at the botton

step-by-step explanation:

if you use photomath right away it will give you the answer not like this app that you have to wait for people.

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.