Kadieng oll mod 3 blog posting
Transcript of Kadieng oll mod 3 blog posting
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CC GPS Geometry
Learning Objective #34:
Identify the steps to the factoring process for two terms, three terms, and four terms
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Practice Problems set 1:
(x2 – 25)
(x2 + 7x + 10)
(x3 + 7x + 2x + 14)
(x2 – 1)
(x2 – 6x + 9)
(5x4 – 15x3 + 10x2)
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SOLUTIONS(example of students response):
(x2 – 25)
2 terms
Look for difference of 2 perfect squares
Solution is 2 binomials, one +, one –
Square Root of the first term in position 1, Square Root of the second term in position 2 for both binomials
(x + 5)(x – 5)
(x2 – 1)
2 terms
Look for difference of 2 perfect squares
Solution is 2 binomials, one +, one –
Square Root of the first term in position 1, Square Root of the second term in position 2 for both binomials
(x + 1)(x – 1)
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SOLUTIONS con’t(example of students response):
(x2 + 7x + 10)
3 terms
Identify a,b, & c from
ax2 + bx + c
Create diamond with
a •c in the North position and b in the South position
Find two numbers, East & West positions, that multiply to the North and combine (add/subtract) to the South
(x + 2)(x + 5)
(x2 – 6x + 9)
3 terms
Identify a,b, & c from
ax2 + bx + c
Create diamond with
a •c in the North position and b in the South position
Find two numbers, East & West positions, that multiply to the North and combine (add/subtract) to the South
(x – 3)(x – 3)
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SOLUTIONS con’t(example of students response):
(x3 + 7x + 2x + 14)
4 terms
Group like binomials
Find GCF for both sets
Identify matching “left overs” for one binomial and GCF’s for second binomial
(x2 + 2)(x + 7)
(5x4 – 15x3 + 10x2)
4 terms – in this case, it’s necessary to separate the middle term into two terms
Group like binomials
Find GCF for both sets
Identify matching “left overs” for one binomial and GCF’s for second binomial
(5x3 – 5x2)(x – 2)