(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

yes

yes yes yes

17

step-by-step explanation:

51/3=17

thus 17 is your answer.