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Find the zeroes of polynomial ×square+8××15

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Find the zeroes of polynomial ×square+8××15

Posted by Kamandalam Nikitha 7 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 7 years, 1 month ago

x² + 8x + 15 = 0
x² + 5x + 3x + 15 = 0
x(x + 5) + 3(x + 5) = 0
(x+ 5) (x + 3) = 0
x + 5 = 0, x+ 3 = 0
x = -5 or x = -3

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