Question

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Answer 1

a=1,489

b=4,473

c=7,685

d=9,365

espero que te ayude

Answer 2

Respuesta:

( x+7) ( x+3) - ( x + 5)² + 9

(1-1)x² + (10 - 10) x + (21 - 25 + 9)

o+ (10- 10) x + (21 - 25 + 9)

(21 - 25+ 29)

= 5 respuesta