Example 6: Subtracting polynomials with two variables Algebra I Khan Academy - видео

Courses on Khan Academy are always 100 free. Start practicingand saving your progressnow: Simplify 4x2y - 3xy 25 - 9y2x 7xy - 20 Practice this lesson yourself on KhanAcademy.org right now: Watch the next lesson: Missed the previous lesson? Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand of sorts. As opposed to having to do something over and over again algebra gives you a simple way to express that repetitive process. I...
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