find the roots of the following quadratic equation by factorisation : x2-3x-10=0
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Answer:
x2 – 3x – 10
= x2 - 5x + 2x - 10
= x(x - 5) + 2(x - 5)
= (x - 5)(x + 2)
Roots of this equation are the values for which (x - 5)(x + 2) = 0
∴ x - 5 = 0 or x + 2 = 0
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