21.5 Factoring perfect square trinomials: (a+b)2=a2+2ab+b2(a + b)^2 = a^2 + 2ab + b^2 or (ab)2=a22ab+b2(a - b)^2 = a^2 - 2ab + b^2

Factoring perfect square trinomials: (a+b)2=a2+2ab+b2(a + b)^2 = a^2 + 2ab + b^2 or (ab)2=a22ab+b2(a - b)^2 = a^2 - 2ab + b^2

Some polynomials have common patterns, which can be factorized faster if you can recognize them. Perfect square trinomial is one of these cases.

Lessons

  • 1.
    Factor the perfect squares
  • 2.
    Find the square of a binomial:
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Factoring perfect square trinomials: (a+b)2=a2+2ab+b2(a + b)^2 = a^2 + 2ab + b^2 or (ab)2=a22ab+b2(a - b)^2 = a^2 - 2ab + b^2

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