SOLUTION: (a). write the value of the discriminant of each equation. (b). Then use it to decide how many different real number roots the equation has.(do not solve.)
x to the second power
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-> SOLUTION: (a). write the value of the discriminant of each equation. (b). Then use it to decide how many different real number roots the equation has.(do not solve.)
x to the second power
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Question 42804: (a). write the value of the discriminant of each equation. (b). Then use it to decide how many different real number roots the equation has.(do not solve.)
x to the second power = 2x - 1 Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! For x^2 = 2x - 1 we have
x^2 - 2x + 1 = 0 and the disciminant equals
4 - 4 = 0
meaning you will have one rational double root.
Of course it is a perfect square trinomial...
