What is the value of the discriminant for the quadratic equation $4 x^{2} - 2 x + 1 = 0$ $4x^2-2x+1=0$ ?

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What is the value of the discriminant for the quadratic equation $4 x^{2} - 2 x + 1 = 0$ $4x^2-2x+1=0$ ?

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Answer 1 · 2015-11-09T01:03:01

The discriminant is -12.

Explanation:

The formula for a discriminant is $b^{2} - 4 a c$ $b^2 - 4ac$ . Quadratic equations are usually written in the form $a x^{2} + b x + c$ $ax^2 + bx + c$ . In this case, $a = 4, b = - 2, and c = 1$ $a = 4, b = -2, and c = 1$ . Substituting the values in the formula is:

${(- 2)}^{2} - 4 (4) (1) = 4 - 16 = - 12$ $(-2)^2 - 4(4)(1) = 4 - 16 = -12$ .

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What is the value of the discriminant for the quadratic equation $4 x^{2} - 2 x + 1 = 0$ $4x^2-2x+1=0$ ?

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Explanation:

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What is the value of the discriminant for the quadratic equation $4 x^{2} - 2 x + 1 = 0$ $4x^2-2x+1=0$ ?