bonjour
O = ( 4 x - 3 ) ( 5 x - 8 ) - ( x² + 2 - 3 x )
= 20 x² - 32 x - 15 x + 24 - x² - 2 + 3 x
= 19 x² - 44 x + 22
S = ( x + 3 )² + ( 2 x - 5 )²
= x² + 6 x + 9 + 4 x² - 20 x + 25
= 5 x² - 14 x + 34
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bonjour
O = ( 4 x - 3 ) ( 5 x - 8 ) - ( x² + 2 - 3 x )
= 20 x² - 32 x - 15 x + 24 - x² - 2 + 3 x
= 19 x² - 44 x + 22
S = ( x + 3 )² + ( 2 x - 5 )²
= x² + 6 x + 9 + 4 x² - 20 x + 25
= 5 x² - 14 x + 34