please help me in this problem
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Answer: 12.5
Step-by-step explanation:
2x + 5 is a factor then on putting 2x +5 = 0
x = -5/2 should satisfy 2x^2 - k = 0
=> 2(-5/2)^2 - k = 0
=> k = 2 * 25/4 = 25/2 = 12.5 answer...
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