The value of k for which 3 is a root of the equation kx² - 7x + 3 = 0 is *
a. 2
b. -2
c. 3
d. -3
Answers
Answered by
1
P(x) = kx^2 - 7x + 3
P(3) = 0
k(3)^2 - 7(3) + 3 = 0
9k -21 + 3 = 0
9k - 18 = 0
9k = 18
k = 18/9
k = 2
Answer : (a) 2
Answered by
0
Answer:
a. 2
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