Practice Quadratic equation Questions and Answers

• I. x2 + 91 = 20x II. 10y2 - 29y + 21 = 0
• I. 5x + 2y = 31 II. 3x + 7y = 36
• I. 6x² + 77x + 121 = 0 II. y² + 9y - 22 = 0
• I. x² + 4x + 4 = 0 II. y² - 8y + 16 = 0
• I. x² - (16)2 = 0 II. 2y - 14 = 0
• I. x² - 19x + 84 = 0 II. y² - 25y + 156 = 0
• I. x2 – 13x + 36 = 0 II. 3y2 – 29y + 18 = 0
• I. 2x2 – 5x - 12 = 0 II. y2 – 11y + 30 = 0
• I. 3x2 – 16x + 21 = 0 II. y2 – 13y + 42 = 0
• I. x2 – 18x + 81 = 0 II. y2 – 3y - 28 = 0
• I. x2 – 9x + 18 = 0      II. y2 – 5y + 6 = 0       
•  If 4x = 40, 3y = 33, what is the value of 6x + 4y?
• How many values of x and y satisfy the equation 2x + 4y = 8 & 3x + 6y = 10.
• The equation q2 - 17x + C = 0, has two roots ‘x’ and ‘y’ such that (x – y) = 7. Find an equation which is equal to thrice of the given equation. ...
• The equation x2 – px – 60 = 0, has two roots ‘a’ and ‘b’ such that (a – b) = 17 and p > 0. If a series starts with ‘p’ such that the cons...
• (i) 2x² – 12x + 16 = 0 (ii) 2y² – 20y + 48 = 0
• (i) x² – 3x – 40 = 0 (ii) y² + 11y + 30 = 0
• (i) 2x² – x – 3 = 0 (ii) 2y² – 6y + 4 = 0
• (i) 2x² + 14x - 16 = 0 (ii) y² – y – 12 = 0
• (i) 2x² – 9x + 10 = 0 (ii) 4y² – 12y + 9 = 0
• I. 2x2 – 19x + 45 = 0 II. y2 – 14y + 48 = 0
• I. x2 – 3(x + 5) = -11 II. y2 – 4(y + 2) = -2y
• I. x2 – 19x + 88 = 0 II. (y + 4)2 = 121
• I. x2 + x – 42 = 0 II. y2 + 6y – 27 = 0
• I. 2x2 + 3x - 9 = 0 II. 3y2 - y - 10 = 0
• I. 5x2 – 7x – 6 =0 II. 2y2 – 5y – 7 =0
• I. x2 - 11x + 24 = 0 II. y² - 5y + 6 = 0
• I. x2 - x - 56 = 0 II. y2 - 20y + 96 = 0
• I. 4x2 + 9x - 9 = 0 II. 4y2 - 19y + 12 = 0
• I. x2 + 28x + 96 = 0 II. y2 + 3y - 70 = 0
• I. x2 – 10x + 21 = 0 II. y2 + 11y + 28 = 0
• I. x2 + 13x + 42 = 0 II. y² + 13y + 40 = 0
• I. x2 - 9x - 52 = 0 II. y2 - 16y + 63 = 0
• I. 2x2 – 10x – 48 = 0 II. y2 – 16y – 297 = 0
• I. 2x2 + 12x + 18 = 0 II. 3y2 + 13y + 12 = 0
• I. x2 + 11x + 30 = 0 II. y2 + 17y + 72 = 0
• I. x2 - 5x - 14 = 0 II. y2 - 16y + 64 = 0
• I. x2 - 20x + 96 = 0 II. y2 - 23y + 22 = 0
• A and B are the roots of equation x2 - 13x + k = 0. If A - B = 5, what is the value of k?
• If a quadratic polynomial y = ax2 + bx + c intersects x axis at a and β, then