HELP ITS AN EXAM L
10 in.
K
15 in
х
Which equation can be used to find the measure of angle LIK?
cos(x)
10
15
10
sin(x) - 15
o costx) - 25
sin(x) -
15
10

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.

ok thats very interesting

16 is the coefficient

hope this

i think it is d. hope this