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math
For what value of k does the equation x2 + kx + 9have: Two distinct real roots One real root No real root
asked by A on March 6, 2019 
Alegbra 2
Use the rational root theorem to list all possible rational roots for the equation. X^3+2x9=0. Use the rational root theorem to list all possible rational roots for the equation. 3X^3+9x6=0. A polynomial function P(x) with
asked by Chelsey on January 26, 2018 
Math
The function f is defined by f(x)=2x^26x+5 Find the set of values of p for which the equation f(x)=p has no real roots. Thanks in advance!
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if a quadratic equation with real coefficents has a discriminant of 10, then what type of roots does it have? A2 real, rational roots B2 real, irrational roots C1 real, irrational roots D2 imaginary roots
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Algebra 2
1. The roots of the quadratic equation z^2 + az + b = 0 are 2  3i and 2 + 3i. What is a+b? 2. Find all pairs of real numbers (x,y) such that x + y = 6 and x^2 + y^2 = 28. If you find more than one pair, then list your pairs in
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Algebra 2(quadratic)
Use the value of the discriminant to determine the number and type of roots for the equation: (x^2+20=12x16) 1 real, irrational 2 real, rational no real 1 real, rational
asked by Chels on November 3, 2007 
Math
determine the value(s) of k which a quadratic equation x^2+kx+9=0 will have. a) two equal real roots b) 2 distinct roots I tried to find the discriminant but couldn't get the right answer
asked by Anonymous on October 2, 2016 
Pre Cal
Use Descartes’ Rule of Signs to find the number of possible positive, negative, and nonreal roots for the equation, 4x^3+7x^2+7x+3=0 a. 0 positive, 0 negative, 3 non real roots b. 0 positive, 1 or 3 negative, 0 or 2 non real
asked by Jackson on August 17, 2016 
math
Prove that the roots of the equation kx^2+(2k+4)x+8=0 are real for all values of k.
asked by Euler on October 3, 2019 
math
kx^2 + (k+2)x 3 =0 has roots which are real and positive. Find the possible values that k may have. I understand that I have to use the discriminant to solve this, but I can't seem to get the answer right, so I really need help!!
asked by Anita on September 28, 2014 
math
If the roots of the eqn x²2cx+ab=0 are real and unequal, then prove that the roots of x²2(a+b)x+a²+b²+2c²=0 will be imaginary.
asked by tanu on July 5, 2014
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