10th-Grade-Math---USA
Solving-Quadratic-Equations
Easy
Question
Solve the quadratic equation x2 - 4x - 21 = 0.
- 7 & -3
- -7 & 3
- -2 & 7
- 2 & -7
The correct answer is: 7 & -3
Related Questions to study
10th-Grade-Math---USA
Convert the quadratic -x2 - x + 6 into factored form
Convert the quadratic -x2 - x + 6 into factored form
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
The solution from the graph
The solution from the graph
10th-Grade-Math---USASolving-Quadratic-Equations
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The factored form of quadratic equation from the graph
The factored form of quadratic equation from the graph
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
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The solution of x2 - 9409 = 0 is
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
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Identify the equivalent expression of
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
The height of triangle whose area is 6 and base is 1 unit greater than height is
The height of triangle whose area is 6 and base is 1 unit greater than height is
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
The formula for the solution of general quadratic equation is
The formula for the solution of general quadratic equation is
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
The discriminant of x2 + 5x - 1 is
The discriminant of x2 + 5x - 1 is
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
Identify number of real roots of quadratic equation 2x2 + 2x + 2 = 0.
Identify number of real roots of quadratic equation 2x2 + 2x + 2 = 0.
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
Convert the quadratic equation x2 + 5x + 9 = 3 into the square form
Convert the quadratic equation x2 + 5x + 9 = 3 into the square form
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
Convert the quadratic equation x2 + 4x - 5 into factored form
Convert the quadratic equation x2 + 4x - 5 into factored form
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
The quadratic equation from the graph
The quadratic equation from the graph
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
The solution of the equation from the graph
The solution of the equation from the graph
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
Solve the equation 2x2 - 7x - 15 = 0
Solve the equation 2x2 - 7x - 15 = 0
10th-Grade-Math---USASolving-Quadratic-Equations
10th-Grade-Math---USA
Solve the Quadratic equation x2 + 8x - 20 = 0
Solve the Quadratic equation x2 + 8x - 20 = 0
10th-Grade-Math---USASolving-Quadratic-Equations
