(c2-6cd-3d2)+(7c2-cd+8d2)-(-c2+5cd- d2)
plz help

3 • (3c2 - 4cd + 2d2)

Step-by-step explanation:

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 c2)-6cd)-(3•(d2)))+(((7•(c2))-cd)+23d2))-(-c2+5cd-d2)

Step  2  :

Equation at the end of step  2  :

 c2)-6cd)-(3•(d2)))+((7c2-cd)+23d2))-(-c2+5cd-d2)

Step  3  :

Equation at the end of step  3  :

 c2)-6cd)-3d2)+(7c2-cd+8d2))-(-c2+5cd-d2)

Step  4  :

Step  5  :

Pulling out like terms :

5.1     Pull out like factors :

 9c2 - 12cd + 6d2  =   3 • (3c2 - 4cd + 2d2)

Trying to factor a multi variable polynomial :

5.2    Factoring    3c2 - 4cd + 2d2

Try to factor this multi-variable trinomial using trial and error

could you reply to this with the question so i can ?

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest