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X4-x-10=0 equation solve using bisection method solution |
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Answer» Answer: Step by step solution :Step 1: Polynomial Roots Calculator : 1.1 Find roots (zeroes) of : F(x) = x4-x-10 Polynomial Roots Calculator is a set of methods aimed at finding values of x for which F(x)=0 Rational Roots TEST is one of the above mentioned tools. It would only find Rational Roots that is numbers x which can be expressed as the quotient of two integers The Rational ROOT Theorem states that if a polynomial zeroes for a rational number P/Q then P is a FACTOR of the Trailing Constant and Q is a factor of the Leading Coefficient In this case, the Leading Coefficient is 1 and the Trailing Constant is -10. The factor(s) are: of the Leading Coefficient : 1 of the Trailing Constant : 1 ,2 ,5 ,10 Step 2 :Quadratic equations: 2.1 Solve x4-x-10 = 0 In search of an interavl at which the above polynomial CHANGES sign, from negative to positive or the other wayaround. Method of search: Calculate polynomial values for all integer points between x=-20 and x=+20 Found change of sign between x= -2.00 and x= -1.00 Approximating a root using the Bisection Method : We now use the Bisection Method to approximate one of the solutions. The Bisection Method is an iterative procedure to approximate a root (Root is another name for a solution of an equation). The FUNCTION is F(x) = x4 - x - 10 At x= -1.00 F(x) is equal to -8.00 At x= -2.00 F(x) is equal to 8.00 Intuitively we feel, and justly so, that since F(x) is negative on one side of the interval, and positive on the other side then, somewhere inside this interval, F(x) is zero. x = -1.697471857 |
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