Question

Part 1: Solve the following equation using one of the methods listed below.
Part 2: Using complete sentences, explain why you chose the method you used.

Equation:
0 = x2 + 10x + 5

Methods:
Completing the Square
Factoring
Quadratic Formula
Graphing

Answer 1

completing the square:

Half the coefficient of x 10/2 = 5

then 5^2 = 25

The perfecr square is (x+5)^2 . The adjustment for the constant term is -20

Then x^2 + 10x + 5 = (x + 5)^2 - 20

The parabola has vertex at (-5, -20) is concave up y intercept st (0,5)

x - intercepts at -5 +- sr(5)