Can someone help me with this ?

angle 1=180-117(linear pair)

angle 1=63°

The angle of 1 would be 63°

Step-by-step explanation:

the line is 180°, so if 3 is 117° then 2 is the same as 3. Making 1 and 4 the remaining degrees of the 180.

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.