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Goryan [66]
2 years ago
8

Please help please please ASAP

Mathematics
2 answers:
nasty-shy [4]2 years ago
6 0

Answer:

x=45

Step-by-step explanation:

180-90= 90

90/2=45

NemiM [27]2 years ago
3 0

omg am sooo sorry  this is all i could do.

52= y + 42       90+ X + Y = 180

i rlly dont know am sorry

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Yes; you are correct.
___________________________________________________
The correct answer is:
___________________________________________________
Answer choice:  [C]:  " x³ − 9x² + 23x <span>− 12 " .
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Note: (a </span>− b) (c − d + e) = ac − ad + ae − bc + bd − be ;
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          (x − 4) (x² <span>− 5x + 3) = 

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   x * 5x = 5x</span>² + 

   x * 3   = 3x <span>−

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________________________________________
</span>          (x − 4) (x² − 5x + 3) = 

x³ − 5x² + 3x −4x² − (-20x) + (-12) ;

=  x³ − 5x² + 3x −4x² + 20x − 12 ;

= x³ − 5x² − 4x² + 3x + 20x − 12 ;

= x³ − 9x²  + 23x − 12 ;  which is:
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