Verify Whether 1 is the Root of the Quadratic Equation : x^2+3x-4=0 - Algebra

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Verify whether 1 is the root of the quadratic equation : `x^2+3x-4=0`

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Solution

x2 + 3x – 4 = 0
If x = 1 satisfies the quadratic equation, then 1 is a root of the quadratic equation.
12 + 3× 1 – 4 = 0
Hence Proved.

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2014-2015 (March)

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