1. Which of the following is a quadratic polynomial?, x2 + x, x - x3, 1 + x , 13x + 20, 2. The value of the polynomial 5x - 4x2 + 3, 5 , 6, -6, -5, If x =2 is a solution of the expression 2x2 -3x + 7k then the value of k will be, 2/7, 7/2, - 3/7, -2/7, ( x - 2 ) ( x + 5 ) , x2 - 3x + 10, x2 + 3x - 10, x2 - 3x - 10, x2 + 3x + 10, What is the coefficient of y in the expansion of ( 5 - 3 y)2, - 10 , 10 , 30 , -30, Solve for x: 5x - 10 = 2 - 2x + 10 (x + 3 ) , 6, 3, -3, 14, One factor of 5x2 - 3x - 2, 5x + 2 , 5x - 2, x + 1, 5x + 1, If 7x + 4 = -19 + 5x then 2x -14 equals, 23, -23, 37, - 37, If f ( x) = x2 - 5x +7 then evaluate f(2) - f ( -1 ), -14, 14, 12, -12, Which of the following is an expression for the length and breadth of a rectangle whose area is 25a2 - 30a + 12, (5a + 4 ) ( 5a + 3), (5a + 4 ) ( 5a - 3), (5a - 4 ) ( 5a - 3), (5a - 4 ) ( 5a + 3).
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DT STD X QUADRATIC EQUATIONS
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