if x =3 is a solution of the equation 3x² + (k -1) x +9 = 0,then k is equal to
Answers
Answered by
4
Answer:
x = 3
3x² + (k -1) x +9 = 0
3(3)² + (k-1)3 +9 =0
27+3k-3+9=0
3k+33=0
3k = -33
k = -11
follow me on brainly
Answered by
1
Answer:
11
Step-by-step explanation:
3(3)2+(k-1)3+9
=>27+3k-3+9=0
=>27-3+9+3k=0
=>24+9+3k=0
=>33+3k=0
=>3k=-33
=>k=33÷3
=>k=11
Similar questions