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Factoring difference of squares: x2−y2x^2 - y^2

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Intros
Lessons
  1. What is a "difference of squares"?
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Examples
Lessons
  1. Factor:
    1. x2−49{x^2} - 49
    2. 4x2+254{x^2} + 25
    3. 16−9x216 - 9{x^2}
  2. Factor:
    1. 100x2−49y2100{x^2} - 49{y^2}
    2. 32x2−242y232{x^2} - 242{y^2}
    3. 2a3b−8ab32{a^3}b - 8a{b^3}
    4. 25a2b2−4c225{a^2}{b^2} - 4{c^2}
  3. Factor:
    1. (x−y)2−(z)2{\left( {x - y} \right)^2} - {\left( z \right)^2}
    2. (5a+6b)2−(9a−b)2{\left( {5a + 6b} \right)^2} - {\left( {9a - b} \right)^2}
    3. 169(x−3)2−25(x+6)2169{\left( {x - 3} \right)^2} - 25{\left( {x + 6} \right)^2}
  4. Factoring "difference of squares" more than once

    Factor:
    1. x4−16{x^4} - 16
    2. 162a4−2b4162{a^4} - 2{b^4}
    3. 5a7b8−80a3c45{a^7}{b^8} - 80{a^3}{c^4}
Basic Concepts
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