bonjour
25 - x² = ( 5 - x ) ( 5 + x )
49 x² - 100 = ( 7 x - 10 ) ( 7 x + 10 )
16 x² - 16 = ( 4 x - 4 ) ( 4 x + 4 )
a. (5 - x) (5 + x)
b. (7x - 10) (7x + 10)
b. (4x - 4) (4 + 4)
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bonjour
25 - x² = ( 5 - x ) ( 5 + x )
49 x² - 100 = ( 7 x - 10 ) ( 7 x + 10 )
16 x² - 16 = ( 4 x - 4 ) ( 4 x + 4 )
a. (5 - x) (5 + x)
b. (7x - 10) (7x + 10)
b. (4x - 4) (4 + 4)