Write the quadratic equation whose roots are 1 and 4 , and whose leading coefficient is 5 . (Use the letter x to represent the variable.)
The quadratic equation whose roots are 1 and 4 , and whose leading coefficient is 5 is 5x^2 - 25x + 20 = 0. Roots are 1 and 4, then (x - 1)(x - 4) = 0 The leading coefficient is 5, then (5x - 5)(x - 4) = 0 Simplify the equation: 5x^2 - 25x + 20 = 0
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Question
Updated 11/19/2014 10:08:04 PM
Edited by jeifunk [11/19/2014 10:08:04 PM]
Rating
8
The quadratic equation whose roots are 1 and 4 , and whose leading coefficient is 5 is 5x^2 - 25x + 20 = 0.
Roots are 1 and 4, then (x - 1)(x - 4) = 0
The leading coefficient is 5, then (5x - 5)(x - 4) = 0
Simplify the equation: 5x^2 - 25x + 20 = 0
Confirmed by jeifunk [11/19/2014 10:08:16 PM]

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