x2 - (p+4) x + 5= 0 is o, find the value
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Answer:
x²-(p+4)x+2p+5=0
For equal roots
D=0
b²-4ac=0
[-(p+4)]²-4×1×(2p+5)=0
p²+16+8p-8p-20=0
p²-4=0
p²=4
p=±√4
p=+2 or p=-2
Step-by-step explanation:
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