Factoring Difference of Perfect Squares I

Front

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

Back

x² - 49

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.

Front

Factor x²-25

Back

( x + 5 ) ( x - 5 )

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.

Front

Square root of 121

Back

11

Front

x² - 9

Back

(x + 3) (x - 3)

Front

Factorize: x² - 400

Back

( x - 20) ( x + 20)

Front

Factor:
x² - 16

Back

( x - 4) ( x + 4) 

Front

Factor completely. 121x² - 49

Back

( 11x + 7 ) ( 11x - 7 )

Front

Factor 4x²-9

Back

(2x-3)(2x+3)