Answer:
k = 1
k = 0
Step-by-step explanation:
Equation at the end of step 1 :
((((2•(k3))-(7•(k2)))+3k)-((0-(4•(k2)))+5k))-((((2•(k3))-7k)+3k)-((0-22k2)+5k)) = 0
Step 2 :
Equation at the end of step 2 :
((((2•(k3))-(7•(k2)))+3k)-((0-(4•(k2)))+5k))-(((2k3-7k)+3k)-(5k-4k2)) = 0
Step 3 :
Equation at the end of step 3 :
((((2•(k3))-(7•(k2)))+3k)-((0-22k2)+5k))-(2k3+4k2-9k) = 0
Step 4 :
Equation at the end of step 4 :
((((2•(k3))-7k2)+3k)-(5k-4k2))-(2k3+4k2-9k) = 0
Step 5 :
Equation at the end of step 5 :
(((2k3 - 7k2) + 3k) - (5k - 4k2)) - (2k3 + 4k2 - 9k) = 0
Pulling out like terms :
7.1 Pull out like factors :
7k - 7k2 = -7k • (k - 1)
Equation at the end of step 7 :
-7k • (k - 1) = 0
