factoring by grouping - poudre school...
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A.5 Day 4 Factor by Grouping
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Factoring by Grouping
Objective: Solve equations by factoring.
A.5 Day 4 Factor by Grouping
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Quadratic equations are equations such as
A quadratic equation is an equation equivalent to one of the formwhere a, b, and c are real numbers and
Quadratics are seconddegree equations because the largest exponent is a 2.
A.5 Day 4 Factor by Grouping
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Solve
The solution set is
or
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Polynomial equations are equations such as
The degree of a polynomial is determined by the largest exponent.
x3 + 2x2 x + 5 = 0 , x5 + 6x2 9 = 0 , x2 x = 0
A polynomial equation is an equation that is constructed from one or more variables and constants, using only the operations of addition, subtraction, multiplication, and constant positive whole number exponents.
A.5 Day 4 Factor by Grouping
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Factoring when you have four terms
Solve
The solution set is
What do the first two terms have in common?
Factor out (x1) from both terms.
Factor the quadratic.
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Solve x3 + 3x2 x 3 = 0
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Hmwk: page 998 (88 92)&
Factoring 1/2 sheet
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