Mathematics
Quadratic-Equations
Easy
Question
If the roots of the equation 3ax2 + 2bx + c = 0 are in the ratio 2 : 3, then _____.
- 8ac = 25b
- 8ac = 9b2
- 8b2 = 9ac
- 8b2 = 25ac
The correct answer is: 8b2 = 25ac
Related Questions to study
Mathematics
If the roots of the quadratic equation ax2 + bx + c = 0 are α and β, then the equation whose roots are α2 and β2 is _____.
If the roots of the quadratic equation ax2 + bx + c = 0 are α and β, then the equation whose roots are α2 and β2 is _____.
MathematicsQuadratic-Equations
Mathematics
What are the values of x which satisfy the equation,
What are the values of x which satisfy the equation,
MathematicsQuadratic-Equations
Mathematics
Which of the following are the roots of the equation |x|2 + |x| - 6 = 0?
A) 2 B) -2 C) 3 D) -3
Which of the following are the roots of the equation |x|2 + |x| - 6 = 0?
A) 2 B) -2 C) 3 D) -3
MathematicsQuadratic-Equations
Mathematics
If the quadratic equation (a2 - b2)x2 + (b2 - c2)x + (c2 - a2) = 0 has equal roots, then which of the following is true?
If the quadratic equation (a2 - b2)x2 + (b2 - c2)x + (c2 - a2) = 0 has equal roots, then which of the following is true?
MathematicsQuadratic-Equations
Mathematics
Find the range of the values of x which satisfy the inequation, x2 – 7x + 3 < 2x + 25.
Find the range of the values of x which satisfy the inequation, x2 – 7x + 3 < 2x + 25.
MathematicsQuadratic-Equations
Mathematics
If the sum of the squares of three consecutive odd natural numbers is 155, then their product will be equal to _____.
If the sum of the squares of three consecutive odd natural numbers is 155, then their product will be equal to _____.
MathematicsQuadratic-Equations
Mathematics
The solution of the inequation, 15x2 – 31x + 14 < 0 is given by _____.
The solution of the inequation, 15x2 – 31x + 14 < 0 is given by _____.
MathematicsQuadratic-Equations
Mathematics
If (x + 1) (x + 3) (x + 5) (x + 7) = 5760, find the real values of x.
If (x + 1) (x + 3) (x + 5) (x + 7) = 5760, find the real values of x.
MathematicsQuadratic-Equations
Mathematics
If 3 · 22x+1 – 5 · 2x+2 + 16 = 0 and x is an integer, find the value of x.
If 3 · 22x+1 – 5 · 2x+2 + 16 = 0 and x is an integer, find the value of x.
MathematicsQuadratic-Equations
Mathematics
Solve for x, |x|2 – 7|x| + 12 = 0.
Solve for x, |x|2 – 7|x| + 12 = 0.
MathematicsQuadratic-Equations
Mathematics
Solve for x: 3x+1 + 32x+1 = 270
Solve for x: 3x+1 + 32x+1 = 270
MathematicsQuadratic-Equations
Mathematics
If α and β are the roots of the equation x2 – 6x + 8 = 0, then find the value of α2 + β2
If α and β are the roots of the equation x2 – 6x + 8 = 0, then find the value of α2 + β2
MathematicsQuadratic-Equations
Mathematics
Form a quadratic equation with rational coefficients, one of whose roots is .
Form a quadratic equation with rational coefficients, one of whose roots is .
MathematicsQuadratic-Equations
Mathematics
If the sum of the roots of the equation kx2 – 3x + 9 = 0 is , then find the product of the roots of that equation.
If the sum of the roots of the equation kx2 – 3x + 9 = 0 is , then find the product of the roots of that equation.
MathematicsQuadratic-Equations
Mathematics
Discuss the nature of the roots of the equation 4x2 – 2x + 1 = 0.
Discuss the nature of the roots of the equation 4x2 – 2x + 1 = 0.
MathematicsQuadratic-Equations