Question

Check whether x = -1 is a solution of equation 4x^2 - 3x - 1 = 0

Answer 1

Answer:

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Answer 2

Given,

• The quadratic equation $4x^2-3x-1 = 0$ is given.
• X = -1

To find,

• We have to find whether x = -1 is a solution $4x^2-3x-1 = 0$.

Solution,

No, x= -1 is not a solution to the equation $4x^2-3x-1 = 0$.

We can check whether x = -1 is a solution of the equation $4x^2-3x-1 = 0$ or not by simply substituting the value of x = -1 in the quadratic equation,

           $p(x) = 4x^2 -3x-1$

           $p(-1) = 4(-1)^2 -3(-1) -1$

           $p(-1) = 4 +3-1$

           $p(-1) = 6$

By substituting the value of x = -1 in the given equation, the equation does not satisfy.

So, x = -1 is not a solution to the equation $4x^2-3x-1 = 0$.

Hence, no, x= -1 is not a solution to the equation $4x^2-3x-1 = 0$.