Factor using Crisscross Part 2
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Part of video series
Meets NCTM Standards:
Lesson Description:
Shows a way to factor quadratics with leading coefficient not equal to 1 using trial factors using a criss-cross method.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you factor trinomials with leading coefficients?
- How do you factor using the criss-cross method?
- What is the criss-cross method of factoring?
- How do you factor 8x^2 - 14x + 3 using the criss-cross method?
- How do you factor 4x^2 + 9x - 9?
- How do you factor 4x^2 - 4x - 15?
- How do you factor 4x^3 - 66x^2 + 15x?
- How do you factor 4x^4 - 38x^3 + 48x^2?
- How do you factor trinomials with higher exponents than 2?
- How do you factor out the greatest common factor before factoring a trinomial?
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Staff Review
This is another great video showing an innovative way of factoring trinomials with a leading coefficient by eliminating some factors and trying them out without actually multiplying the binomials every time. If you want the full explanation of this method, check out the first lesson in this series.
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