p(x)=x²-5x+k if a-b=1 find out k
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Step-by-step explanation:
a = 1+ b
a = 1 + b
a = 1 -5
a= -4
b = -5
c = k
D = b2- 4ac
D = (-5)2- 4×-4×k
D = 25 + 16k
25 = 16 k
k = 16/25
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