6.4 Factoring and Solving Polynomial Equations

California State Standard A-SSE Seeing Structure in Expresssions:
Write expressions in equivalent forms to solve problems.
3. Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression. 
    a. Factor a quadratic expression to reveal the zeros of the function it defines. 

California State Standard A-APR Arithmetic with Polynomials and Rational Expressions:
Understand the relationship between zeros and factors of polynomials.
3. Identify zeros of polynomials when suitable factorizations are available, and use the zeros to construct a rough graph of the function defined by the polynomial.