Outro W13

Revie of the week

You can find the key concepts you studied this week in the following short reviews

 

9.4 Multiply Square Roots

  • Product Property of Square Roots If a, b are nonnegative real numbers, then
    LaTeX: \sqrt{ab}=\sqrt{a}\sqrt{b}\(\sqrt{ab}=\sqrt{a}\sqrt{b}\)     and LaTeX: \sqrt{a}\cdot\sqrt{b}=\sqrt{ab}\(\sqrt{a}\cdot\sqrt{b}=\sqrt{ab}\)
  • Special formulas for multiplying binomials and conjugates:
    LaTeX: \left(a+b\right)^2=a^2+2ab+b^2\(\left(a+b\right)^2=a^2+2ab+b^2\)            LaTeX: \left(a-b\right)^2=a^2-2ab+b^2\(\left(a-b\right)^2=a^2-2ab+b^2\)
    LaTeX: a^2-b^2=\left(a-b\right)\left(a+b\right)\(a^2-b^2=\left(a-b\right)\left(a+b\right)\)
  • The FOIL method can be used to multiply binomials containing radicals.

 

 

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