Question

My last question on angles (i swear xD)...

Answer 1

angle aed and aec both lie on a 180 degree plane.
sooooooo
angle AED + angle AEC = 180 degrees.
Solve for x and then place the value of x in the equations and VIOLA!!!
Hope this helps

Answer 2

Angle AED is congruent to Angle CEB because vertical angles are congruent.
Therefore, x^2 + 3x - 8 = x^2 + 2x - 3.
The x^2 terms subtract off, leaving 3x - 8 = 2x - 3 and x = 5

M<AED = (5)^2 + 2(5) - 3.
Once you calculate that, find M<AEC by subtracting the M<AED from 180.
That is because angle AEC and AED form a linear pair.

Questions? @Shealah