Answer:
greatest common factor is 2
Step-by-step explanation:
4k, 18k^4, 12
To find greatest common factor , we write each term in factor form
factors form are the product of the factor of given term
4k ---> 2 * 2* k
18k^2 ----> 3 * 3* 2* k*k
12 -----> 2*2*3
all the three terms has common factor 2
So GCf is 2
X^2+2x-5-(x+7)
x^2+x-12
plug in 6 for x
6^2+6-12
36+6-12=30
Perimeter = sum of all sides
so
P = 9 + 5 + 11 = 25
answer 25 cm