Although the terms might seem intimidating, this is a simple substitution problem.
X + Y = _______ Substitute the values of X and Y in terms of w (7w^2 + 4w - 6) + (w^2 - 11w + 13) = ______ Now all you need to do is combine like terms (terms that have the same variables raised to the same power) 8w^2 - 7w + 7
The bisector of an angle of a triangle divides the opposite side into segments that are proportional to the adjacent sides ⇒ AB/BC = AD/DC 36/27 = (42-x)/x 36x = 27(42-x) 36x = 1134 - 27x 36x + 27x = 1134 63x = 1134 x = 1134/63 x = 18
