Question

t²-15 find zeroes why it's answer will be -√15 and √15 ?? reason
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Answer 1

Answer:

t^2-15= 0

t^2 =15

t= +or- root 15

Answer 2

GIVEN=>

t²-15

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to find=>

t²-15 find zeroes why it's answer will be -√15 and √15 ?? reason

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solution=>

$= > t {}^{2} - 15 = 0 \\ \\ = > t {}^{2} - ( \sqrt{15}) {}^{2} = 0 \\ \\ = > (t + \sqrt{15} )(t - \sqrt{15} ) = 0 \\ \\ to \\ = > t + \sqrt{15 } = 0 \\ \\ = > t = - \sqrt{15} \\ and \\ = > t - \sqrt{15} = 0 \\ \\ = > t = \sqrt{15}$

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so

t²-15 find zeroes it's answer will be -√15 and √15

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formula uses=>

$= > a {}^{2} - b {}^{2} =(a + b) (a - b)$

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I hope it helps you