Exemplar problems V — task. Mathematics CBSE, Class 10.

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1. The zeroes of the quadratic polynomial

$x^2 + 99x + 127$ are

both positive
both negative
one positive and one negative
both equal

2. The zeroes of the quadratic polynomial

$x^2 + kx + k$ ,

$k \neq 0$ ,

cannot both be positive
cannot both be negative
are always unequal
are always equal

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