how to find the value of k
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Answer:
2x^2 + Px - 15 = 0
x = -5
x = 5
2×(5)^2 + p×5 - 15 = 0
10^2 + p×5 - 15 = 0
100 + 5p - 15 = 0
100 - 15 + p = 0
185 + p = 0
p = - 185
Step-by-step explanation:
-185 ( 5^2 + 5 ) + k = 0
-185 × 100 + k = 0
-18500 + k = 0
k = 18500
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