Question

if -5 is a root of the quadratic equation 2x^2+px-15=0 and the quadratic equation p(x2+x)+k has real
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Answer 1

Answer:

2x²+px-15 = 0

2(-5)²+p(-5)-15 = 0

50-5p-15 = 0

35-5p = 0

5(7-p) = 0

7-p = 0

-p = -7

p = 7

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