ryleehaymore ryleehaymore
  • 21-06-2021
  • Mathematics
contestada

P= -4b^2+6b-9
Q= 7b^2-2b-5
P-Q=

Respuesta :

jimrgrant1 jimrgrant1
  • 21-06-2021

Answer:

P - Q = - 11b² + 8b - 4

Step-by-step explanation:

P - Q

= - 4b² + 6b - 9 - (7b² - 2b - 5) ← distribute parenthesis by - 1

= - 4b² + 6b - 9 - 7b² + 2b + 5 ← collect like terms

= - 11b² + 8b - 4

Answer Link

Otras preguntas

I need to find the zeros of the function:f(x)=2x^2-5x-3
I need 10 facts about John Williams
The mean of 20 numbers is 18. If 3 is added to each of the first ten numbers, find the mean of the new set of 20 numbers.
what is a 'dead heat'? plz... need help
how did hitler change the lives of workers
how did hitler change the lives of workers
what is the mass in grams of 1.73 moles CaH2
can you tell me what is ballet?
I need help with the following three physics problems please!
A ball falls, rebounds to 72% of its previous height and falls again. After two bounces, the ball reached a height of 25cm. From what height was the ball droppe