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Grade 11 Functions and Applications Unit 2: Factor Quadratic Expressions

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Course
Functions and Applications

Institution
3

The course name is grade 11 Functions and Applications for university/college. The notes are specifically for Unit 2: Factor quadratic expressions. These notes cover the topics of comparing forms (standard, vertex, factored), applying factoring strategies, factoring quadratic expressions, etc. The ...

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Uploaded on April 21, 2021
Number of pages 4
Written in 2020/2021
Type Interview
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Institution Secondary school
Education 3
Course Functions and Applications
School year 3

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MCF 3M1 2.5 Solve Quadratic Equations by Factoring
Factor Quadratic Expressions

Goal: To find the roots of a quadratic equation.

Recall the three forms of a quadratic function:
- Vertex form: a(x – h)2 + k
- Standard form: ax2 + bx + c
- Factored form: a(x – r)(x – s)

To solve a quadratic equation means to find the roots of the equation. The
roots of the equation are the zeroes or x-intercepts(where the parabola
intersects the x axis) of the quadratic equation. For example, the roots of
2
the equation (x + 1) = 9 are -4 and 2.

x + 1 = +/- 3
x = +3 -1 or x = -3 -1
x = +2 or x = -4

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