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Flashcard
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Mathematics
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9th Grade
•
Practice Problem
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the result of multiplying (x - 3)(x + 3)?
Back
x² - 9 (This is an example of the difference of squares.)
Tags
CCSS.HSA.APR.C.4
2.
FLASHCARD QUESTION
Front
How do you simplify (x - 7)²?
Back
x² - 14x + 49 (This is an application of the square of a binomial formula.)
Tags
CCSS.HSA.APR.C.4
3.
FLASHCARD QUESTION
Front
What is the expanded form of (x + 4)²?
Back
x² + 8x + 16 (This is an example of the square of a binomial.)
Tags
CCSS.HSA.APR.C.4
4.
FLASHCARD QUESTION
Front
What is the result of squaring the binomial (7r + 6)?
Back
49r² + 84r + 36 (This is an application of the square of a binomial formula.)
Tags
CCSS.HSA.APR.C.4
5.
FLASHCARD QUESTION
Front
What is the expanded form of (11 - x)²?
Back
x² - 22x + 121 (This is an example of the square of a binomial.)
Tags
CCSS.HSA.APR.C.4
6.
FLASHCARD QUESTION
Front
What is the formula for the difference of squares?
Back
a² - b² = (a - b)(a + b) (This is used to factor expressions like (x - 3)(x + 3).)
Tags
CCSS.HSA.APR.C.4
7.
FLASHCARD QUESTION
Front
What is the formula for the square of a binomial?
Back
(a ± b)² = a² ± 2ab + b² (This is used to expand expressions like (x + 4)².)
Tags
CCSS.HSA.APR.C.4
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