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check whether the value of the x given against each polynomial is a zero of that polynomial or not : |
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Answer» Answer: GIVEN polynomial:
Given value for x:
Explanation: To solve this question we have to PUT 1 and 4 respectively in the given polynomial at the place of x then if we get our final result as 0 then it is the zero and if we didn't get 0 then it is not a zero of the given polynomial. Required solution: ~ Put x as 1 in the polynomial! → p(x) = x² - 5x + 4 → p(1) = (1)² - 5(1) + 4 → p(1) = 1 - 5 + 4 → p(1) = 1 - 1 → p(1) = 0
~ Put x as 4 in the polynomial! → p(x) = x² - 5x + 4 → p(4) = (4)² - 5(4) + 4 → p(4) = 16 - 20 + 4 → p(4) = 16 - 16 → p(4) = 0
Henceforth, verified! |
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