Let $3x^2 + 4x + c = 0.$ What value of $c$ will give us exactly one solution for $x$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Let $3x^2 + 4x + c = 0.$ What value of $c$ will give us exactly one solution for $x$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
\dfrac{4}{3}
Let $3x^2 + 4x + c = 0.$ What value of $c$ will give us exactly one solution for $x$?
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