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Check whether 3 and -5 are zeroes of the polynomial x^2-8x+15 |
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Answer» Here, we're asked to check if 3 and -5 are the zeroes of the given Polynomial, i.e x² - 8x + 15.So, Let's check it! ;) If we've to KNOW WHETHER those two given numbers are the zeroes of the Polynomial, then we've to get 0 by substituting those numbers in place of 'X' in the given Polynomial.Let's try & see if they're the zeroes or not ._.By substituting 3 in place of x, we get :So now, 3 is a zero of x² - 8x + 15.And now by substituting -5 in place of x, we get : And we know that 80 ≠ 0, Which clearly means that -5 is not a zero of x² - 8x + 15. |
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