What is 4 – 11 4 + 1 2 ? a) 27 16 b) 23 4 c) 21 4 d) 31 4

Q: What is 4 - 1 1/4 + 1/2 ? A) 2 7/16 B) 2 3/4 C) 2 1/4 D) 3 1/4

A:

hope this helps! ❤ from peachimin

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.