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- GCE O-Level A Maths
- Factorising 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
9.
Factorising Quadratic Functions
9.1
Factorise by taking out the greatest common factor
9.2
Factorise by grouping
9.3
Factorising perfect square trinomials: (a+b)2=a2+2ab+b2 or (a−b)2=a2−2ab+b2
9.4
Factorising difference of squares: x2−y2
9.5
Factorising trinomials
9.6
Solving polynomials with unknown coefficients
9.7
Solving polynomials with unknown constant terms
Don't just watch, practice makes perfect
Practice topics for Factorising Quadratic Functions
9.1
Factorise by taking out the greatest common factor
9.2
Factorise by grouping
9.3
Factorising perfect square trinomials: (a+b)2=a2+2ab+b2 or (a−b)2=a2−2ab+b2
9.4
Factorising difference of squares: x2−y2
9.5
Factorising trinomials
9.6
Solving polynomials with unknown coefficients
9.7
Solving polynomials with unknown constant terms