Question

(*+ *)(-) = ( )2 - ( )2
(2+y)(2-y) = ( )2 - ( )2
(y + 3)(y-3) = ( )2 - ( )?
( 2x + 3y) (2x - 3y) = ( )2-( )²
?
Resuelve los siguientes productos notables:
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Answer 1

Explicación paso a paso:

(●+ ◇) (●-◇) = (● )² - (◇ )²

(2+y) (2-y) = ( 2)² - ( y)²

= 4 - y²

(y + 3) (y-3) = ( y)² - ( 3)²

= y² - 9

( 2x + 3y) (2x - 3y) = (2x )²- ( 3y)²

= 4x² - 9y²