Question

the perimeter of a traingle is 7p2-8p+9 and two of its side are 2p2-p+1 and 11p2-3p+5.Find third side of the traingle​

Answer 1

Answer:

c=-6p²-4p+3

Step-by-step explanation:

perimeter of triangle= a+b+c

so, a+b+c=7p²-8p+9. (given)

a= 2p²-p+1. (given)

b= 11p²-3p+5. (given)

c=?

2p²-p+1+11p²-3p+5+c=7p²-8p+9

(13p²-4p+6)+c=7p²-8p+9

c=7p²-8p+9-13p²+4p-6

c=7p²-13p²-8p+4p+9-6

c=-6p²-4p+3