earthgurl123
earthgurl123 earthgurl123
  • 02-11-2021
  • Mathematics
contestada

Help me with #25 please!

Help me with 25 please class=

Respuesta :

clarch19
clarch19 clarch19
  • 04-11-2021

Answer:

14x²- 6x - 2

Step-by-step explanation:

find the area of the entire rectangle and then subtract the area of the unshaded rectangle

Area of entire rectangle:

(3x-1)(5x+2)  Use the FOIL method to get:

15x² + 6x - 5x - 2

combine 'like terms' to get:

15x² + x - 2

Area of unshaded rectangle:

x(x+7) = x² + 7x

Subtract:

 15x² + x - 2

+  -x²  - 7x + 0

14x²- 6x - 2

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