If 2 is a zero of polynomial 4ysquare _ 6y _ k, find the value of k. Also find the other zero.
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Answered by
0
Answer:
Let the zeroes be m and n
Sum of the zeroes= -b/a
=> m+n= -(-6)/4
=>2+n=3/2
=>n= -1/2
Thus, the other zero is -1/2
Product of the zeroes=c/a
=> mn= -k/4
=>-1= -k/4
=> k=4
Answered by
0
Answer:
{- 0.5, 2} ; k = 4
Step-by-step explanation:
f(y) = 4y² - 6y - k
f(2) = 4(2)² - 6(2) - k = 0 ⇒ k = 4
4y² - 6y - 4 = 0
+ = -
× =
2 + = ⇒ = - 0.5
= 2 and = - 0.5
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