hi, the question i've got is: the polynomial has (x - 2) as a factor find the exact values of the roots of the equation could someone show me step by step how you would arrive at the answer please? thankyou
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Originally Posted by mark hi, the question i've got is: the polynomial has (x - 2) as a factor find the exact values of the roots of the equation could someone show me step by step how you would arrive at the answer please? thankyou Where a,b and c are constants. You can find a, b and c by comparing coefficients Spoiler: .These will be of the form P(x) = (x-2)(ax^2+bx+c) : : (constant) : Therefore
i already did that bit, the answer in the book is , and any ideas on how to arrive at that answer?
Originally Posted by mark i already did that bit, the answer in the book is , and any ideas on how to arrive at that answer? The roots are where it equals 0 at. So either or The book's answers are the solutions to those equations
ok thanks, how would you get to and from though? what formula would you use?
Originally Posted by mark ok thanks, how would you get to and from though? what formula would you use? The quadratic formula: For :
ahhhh the quadratic formula, thanks for the help
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