roserosemusic21
roserosemusic21 roserosemusic21
  • 04-05-2021
  • Mathematics
contestada

Please help me please I really need help

Please help me please I really need help class=

Respuesta :

msm555
msm555 msm555
  • 04-05-2021

Answer:

(5x-7)(9x²-4x-8)

=5x(9x²-4x-8)-7(9x²-4x-8)

=45x³-20x²-40x-63x²+28x+56

=45x³-83x²-12x+56

Answer Link
YumiIshiyama
YumiIshiyama YumiIshiyama
  • 04-05-2021

Answer:

45x³-83x²-17x+56

Step-by-step explanation:

(5x-7)(9x²-4x-8)

5x(9x²-4x-8) -7 (9x²-4x+56)

45x³-20x²-45x-63x²+28x+56

45x³-83x²-17x+56

Answer Link

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