Find k if 2x + 3 is a factor of 4x² + 2kx - 5.
Answers
Answered by
0
Answer: Send me pic of Naked Girls
4/3
Step-by-step explanation:
2x + 3 = 0
x = -3/2
f(x) = 4x² + 2kx- 5
When x = -3/2, f(x) = 0
So,
4 × (-3/2)² + 2k × (-3/2) - 5 = 0
4 × 9/4 + 2k ×-3/2 = 5
9 - 3k = 5
3k = 4
k = 4/3
Answered by
1
Answer:
4/3
Step-by-step explanation:
2x + 3 = 0
x = -3/2
f(x) = 4x² + 2kx- 5
When x = -3/2, f(x) = 0
So,
4 × (-3/2)² + 2k × (-3/2) - 5 = 0
4 × 9/4 + 2k ×-3/2 = 5
9 - 3k = 5
3k = 4
k = 4/3
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