Given that x + y = 8 and x^2+ y^2= 34
Find the value of (a) x^2+ 2xy+ y^2
(b) 2xy
(C) x^2– 2xy + y^2
(d) x - y
(e)Value of x and y

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Find the zeros of each function. f(x) = x^2 + 5x - 6