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

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#### Solution

x^{2} + 3x – 4 = 0

If x = 1 satisfies the quadratic equation, then 1 is a root of the quadratic equation.

1^{2} + 3× 1 – 4 = 0

Hence Proved.

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