Answer:
x= 14, –12
Explanation:
The given question might make you believe that it's difficult due to it's frightening digit (168) but in fact in you use the following methods, it's going to be a pieces of cake.
the delta formula:
Δ=b²–4ac===> (–2)²–4(1)(–168)=676
well this can be on of the methods and the other one is
The full square formula:
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now what you need to do is to put this on both side of the equation (½b)²=1