Which of these can factor using difference of two squares? Options: x2 - 49, x2 + 4x - 12, 100x2 + 20x + 1, 14x - 16
Factoring Difference of Perfect Squares I

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Mathematics
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
x2 - 49
2.
FLASHCARD QUESTION
Front
Which one is false about the difference of two squares? Options: We can factor because there is addition sign., We can factor because there is a perfect squared number (Example: x2, 25, 49), We can factor because there is minus sign.
Back
We can factor because there is addition sign.
3.
FLASHCARD QUESTION
Front
Factor x2-25
Back
( x + 5 ) ( x - 5 )
4.
FLASHCARD QUESTION
Front
Why can't we factor 49x2 + 4y2 using the difference of two squares?
Back
Because we can't factor using difference of two squares if it is addition sign.
5.
FLASHCARD QUESTION
Front
Square root of 121
Back
11
6.
FLASHCARD QUESTION
Front
x2 - 9
Back
(x + 3) (x - 3)
7.
FLASHCARD QUESTION
Front
Factorize: x2 - 400
Back
( x - 20) ( x + 20)
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