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