A conjecture and the flowchart proof used to prove the conjecture are shown. D
Given: m2DEG = 51°
G
mZGEF = 39
Prove: ADEF is a right triangle,
E.
F
Drag an expression or phrase to each box to complete the proof.
m2DEG = 51 m2GEF= 39"
MZDEG + MZGEF = IZDEF

answer: i'm not sure

step-by-step explanation:

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.