ryleehaymore ryleehaymore

21-06-2021
Mathematics

contestada

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

Relax

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

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