please answer fast 17
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Heya
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Let it's product be equal to d
=>
d = -3xy² - 3y³
At x = 4 And y = 5
d = -3( 4 ) ( 5 )² - 3 ( 5 )³
=>
d = -300 - 3 × 125
=>
d = -300 - 375
=>
d = -675
_______________________________
Let it's product be equal to d
=>
d = -3xy² - 3y³
At x = 4 And y = 5
d = -3( 4 ) ( 5 )² - 3 ( 5 )³
=>
d = -300 - 3 × 125
=>
d = -300 - 375
=>
d = -675
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