Mathematics
Quadratic expressions
Practice questions
Which of the following expressions is a quadratic polynomial in x?The expression (x^2+px+16) is a perfect square and (p) is positive. What is the value of (p)?The expression (4x^2+px+25) is a perfect square and (p<0). What is the value of (p)?What is the expansion of ((3x+2)(x-5))?Which of the following quadratic trinomials is a perfect square?Which of the following becomes a quadratic expression in \(x\) after simplification?Which of the following is a quadratic expression in x even though it has no linear term in x?What is obtained by subtracting (2x^2-3x+4) from (5x^2+2x-7)?For which (k) will (x^2+kx+9) be a perfect square with negative middle term?What is the relation between (x^2-4) and (x^2+4x+4)?Which of the following quadratic expressions is a perfect square of the sum of two linear terms?In ((x-a)^2), the constant term is (36) and (a>0). What will be the coefficient of (x)?If (x-\frac{1}{x}=4), what is the value of (x^2+\frac{1}{x^2})?How can (x^2+4x+7) be written as a perfect square plus a constant?For a quadratic trinomial of the form \(x^2+bx+c\), which condition is necessary and sufficient for it to be a perfect-square trinomial?Write (2(x+3)^2-5) in simplified quadratic form.Which of the following is a quadratic polynomial in \(x\) that has two distinct real zeroes?Which of the following quadratic trinomials is never negative for every real value of x?Which values make (x^2+x-12) equal to zero?What is the difference between (x^2+2x+1) and (x^2-2x+1)?