1) How the equation we study today is called a) equation b) 1st grade equation c) 2nd grade equation  d) 3rd grade equation 2) in the equation a≠… a) 0 b) 1 c) 3 d) 2 3) Δ can be a) positive b) negative c) zero d) all the previous e) nothing from the previous 4) if Δ>0 it has a) two different roots   b) one root  c) no roots d) 3 roots 5) if Δ=0 it has a) one root b) 3 roots c) 1 double root d) 0 roots 6) if Δ<0  it has a) one root b) 0 roots c) 4 roots d) 2 roots 7) What we use in order to find the Δ a) our mind b) internet c) a type we have learned d) nothing 8) Δ must be a) number b) letter c) number and in some times letter d) all the previous

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