Solve for x by simplifying both sides of the equation, then isolating the variable.
x = 10
X^2 - 8x + 13 = 0
subtract 13 from both sides
x^2 - 8x = -13
-8/2 = -4, (-4)^2 = 16, add 16 to both sides
x^2 - 8x + 16 = -13 + 16
factor the left side
(x - 4)^2 = 3
A vertex can be the max or min. The vertex is the highest point or lowest point of a function.
It will be 69 because 68 is wrong and 69 is right
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