Chapter9: Quadratic Equations And Functions

Section9.2: Solve Quadratic Equations By Completing The Square

Problem 9.23TI: Solve by completing the square: x2+4x=5 .

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.

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Solve by completing the square

9x^2+3x=2

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