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- Quadratic Functions
Factoring difference of squares: x2−y2
- Intro Lesson10:35
- Lesson: 1a1:30
- Lesson: 1b2:05
- Lesson: 1c2:14
- Lesson: 2a1:22
- Lesson: 2b6:49
- Lesson: 2c4:50
- Lesson: 2d2:01
- Lesson: 3a2:18
- Lesson: 3b2:38
- Lesson: 3c5:33
- Lesson: 4a4:47
- Lesson: 4b4:57
- Lesson: 4c6:41
Factoring difference of squares: x2−y2
Basic Concepts: Multiplying binomial by binomial, Factoring perfect square trinomials: (a+b)2=a2+2ab+b2 or (a−b)2=a2−2ab+b2, Find the difference of squares: (a−b)(a+b)=(a2−b2)
Related Concepts: Completing the square, Converting from general to vertex form by completing the square, Solving quadratic equations by factoring, Solving quadratic equations by completing the square
Lessons
- IntroductionWhat is a "difference of squares"?
- 1.Factor:a)x2−49b)4x2+25c)16−9x2
- 2.Factor:a)100x2−49y2b)32x2−242y2c)2a3b−8ab3d)25a2b2−4c2
- 3.Factor:a)(x−y)2−(z)2b)(5a+6b)2−(9a−b)2c)169(x−3)2−25(x+6)2
- 4.Factoring "difference of squares" more than once
Factor:a)x4−16b)162a4−2b4c)5a7b8−80a3c4
Do better in math today
19.
Quadratic Functions
19.1
Factorise by taking out the greatest common factor
19.2
Factorise by grouping
19.3
Factorising perfect square trinomials: (a+b)2=a2+2ab+b2 or (a−b)2=a2−2ab+b2
19.4
Factorising difference of squares: x2−y2
19.5
Factorising trinomials
19.6
Solving polynomials with unknown coefficients
19.7
Solving polynomials with unknown constant terms
19.8
Properties and graphs of quadratic functions
Don't just watch, practice makes perfect
Practice topics for Quadratic Functions
19.1
Factorise by taking out the greatest common factor
19.2
Factorise by grouping
19.3
Factorising perfect square trinomials: (a+b)2=a2+2ab+b2 or (a−b)2=a2−2ab+b2
19.4
Factorising difference of squares: x2−y2
19.5
Factorising trinomials
19.6
Solving polynomials with unknown coefficients
19.7
Solving polynomials with unknown constant terms
19.8
Properties and graphs of quadratic functions