If the quadratic equation px² -2 root5 px +15 = 0 has two equal roots find the p
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a=p b=-2root5 c=15
b^2-4ac=0
(-2root5p)^2-4×p×15
20p^2-60p=0
20p (p-3)=0
20p=0 (p-3)=0
p=0 p=3
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