Min is trying to place some bookmarks inside a 1 page book. the pages that she wants to place the bookmarks on have four digits page numbers. the digits in the thousands and units places add up to 7. how many bookmarks will she need?

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.

8

step-by-step explanation:

answer: it is 8

step-by-step explanation:

you know why its 8

d is the only accurate one

step-by-step explanation: