01:15

Writing a one-step expression for a real-world…

Writing a one-step expression for a real-world situation

Some discussion of vocabulary combined with writing a simple expression from a verbal description.

04:44

Finding the roots of a quadratic equation with…

Finding the roots of a quadratic equation with leading coefficient greater than 1

This is a quadractic equation that can be factored to solve it. The zero product property allows writing the factors each equal to 0 and then solving those linear equatioins.

02:32

Factoring out a binomial from a polynomial: GCF…

Factoring out a binomial from a polynomial: GCF factoring, basic

Demonstrates how to remove a common factor that not just a single number or variable, but a binomial i. e. a two-term expression.

03:25

Finding slopes of lines parallel and…

Finding slopes of lines parallel and perpendicular to a line given in slope-intercept form

Describes how and why the slopes of parallel and perpendicular lines can be found

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