Use the discriminant to determine the number of real solutions of $18 x ^ { 2 } - 12 x + 2 = 0$ .
A)no real solutions
B)two real solutions
C)one real solution

Name: Use the discriminant to determine the number of real solutions of $18 x ^ { 2 } - 12 x + 2 = 0$ . A)no real solutions B)two real solutions C)one real solution
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Question

Quizplus · Accepted Answer

The discriminant is given by 
$$b^2-4ac=(-12)^2-4(18)(2)=144-144=0$$ 
Since the discriminant is equal to $0$, there is only one real solution.

Use the Discriminant to Determine the Number of Real Solutions 18x2−12x+2=018 x ^ { 2 } - 12 x + 2 = 018x2−12x+2=0

Use the Discriminant to Determine the Number of Real Solutions $18 x ^ { 2 } - 12 x + 2 = 0$