A) 5
B) 3
C) - 4
D) 6
Correct Answer: B
Solution :
\[{{x}^{2}}5x+5=1\Rightarrow x=1,4\] \[{{x}^{2}}-5x+5=-1\Rightarrow x=2,3\] but 3 is rejected \[{{x}^{2}}+4x-60=0\Rightarrow x=-10,6\]Sum = 3You need to login to perform this action.
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