0
What are the solutions to the equation of 2x squared plus 5x -k equals 0 showing work?
Wiki User
∙ 8y ago
You can use the quadratic equation for this one. Set a = 2, b = 5, c = -k.
Another Answer:-
Using the discriminant of b^2-4ac = 0
25-4(-2k) = 0 => 25+8k = 0 => k = -25/8 or -3.125
So: 2x^2+5x-(-3.125) = 0
Using the quadratic equation formula: x has equal values of -5/4 or - 1.25
Wiki User
∙ 8y ago
Add your answer:
Earn +20 pts
What are the solutions to the equation 2x squared minus x 3?
There's an equals missing...
Is 4y squared plus 9 equals - 4 a linear equation?
No. It's a quadratic equation, and it has two solutions.
How many solutions will the equation 25 equals 2x squared-6x have?
2x2 - 6x - 25 = 0. Solutions are 5.34 and -2.34
Does the equation a squared plus b squared equals c squared classify as a quadratic equation?
no
What is x squared plus 5x minus 36 equals 0?
It is a quadratic equation and its solutions are: x = 4 or x = -9
How many solutions will the equation 25 equals 2x squared 6x have?
The quadratic equation will have two solutions.
What are the solutions to the equation 2x squared minus x 3?
There's an equals missing...
Is 4y squared plus 9 equals - 4 a linear equation?
No. It's a quadratic equation, and it has two solutions.
What are the solutions for X squared minus 5x equals 6?
The solutions to the quadratic equation are: x = -1 and x = 6
How many solutions will the equation 25 equals 2x squared-6x have?
2x2 - 6x - 25 = 0. Solutions are 5.34 and -2.34
What are the solutions to the quadratic equation n2 -n -90 equals 0?
If: n squared -n -90 = 0 Then the solutions are: n = 10 or n = -9
Does the equation a squared plus b squared equals c squared classify as a quadratic equation?
no
What are 3 real rational solutions to this system of equations z equals x squared y equals z squared x equals y squared?
The two rational solutions are (0,0,0) and (1,1,1). There are no other real solutions.
What is x squared plus 5x minus 36 equals 0?
It is a quadratic equation and its solutions are: x = 4 or x = -9
What is 2x squared minus 3x minus 9 equals 0?
It is a quadratic equation and its solutions are: x = -3/2 and x = 3
What are the solutions of the simultaneous equations of x squared -xy -y squared equals -11 and 2x plus y equals 1?
1st equation: x^2 -xy -y squared = -11 2nd equation: 2x+y = 1 Combining the the two equations together gives: -x^2 +3x +10 = 0 Solving the above quadratic equation: x = 5 or x = -2 Solutions by substitution: (5, -9) and (-2, 5)
What are the x solutions for the equation 10x2 64 equals 36 plus 6x2?
If the 64 has a minus sign, then the solution is x = +/-5 Simplifying gives 4x squared = 100 ie x squared = 25...
