Question

EXERCISE 2.2
Find the zeroes of the following quadratic polynomials and verify the relationship between
the zeroes and the coefficients.

(v) tsquare -15

with the given numbers as the sum and product of its
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Answer 1

$t {}^{2} - ( \sqrt{15) {}^{2} } = (t - \sqrt{15)} (t - \sqrt{15)} so \: zeros \: are \sqrt{15} and - \sqrt{15} bcoz \: vlaue \: of \: a {}^{2} - 15is \: \: zero \: when \: t - \sqrt{} 15 = 0 = r = \sqrt{15} or \: t + \sqrt{15} = 0 = r = - \sqrt{15} \: verification \: \alpha = - \sqrt{} 15 \beta = \sqrt{15} \: \: \ = \alpha + \beta = \sqrt{15} + \sqrt{15} = 0 = 0 \div 1$

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