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Class 9 Mcq

Class 9 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsFor a quadratic expression \(ax^2+bx+c\) to have two distinct real zeroes, which statement about its discriminant is correct?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsWhich (k) makes (x^2+kx+81) a perfect square and (k) is negative?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsThe factorised form of (2x^2+mx+10) is ((2x+5)(x+2)). What is (m)?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsWhen the quadratic expression \(y^2 - 7y + 12 = (y-p)(y-q)\) is factorised, which statement about p and q is correct?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsWhich of the following quadratic trinomials is the expansion of a perfect square?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsChoose the correct factorised form of (6p^2+5pq-q^2).Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsWhich of the following quadratic expressions is a perfect square of a binomial?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsWhich of the following expressions can be identified as a perfect square of a binomial?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsIf (9x^2+kx+25) is a perfect square and (k) is negative, what is (k)?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsIf (4x^2+12x+k) is a perfect square, what is (k)?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsWhat is the complete factorised form of (3x^2-27)?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsAfter taking the common factor from (5x^2-20x+20), which quadratic expression remains inside?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsWhich quadratic expression is obtained from ((x-4)(x+2))?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsIn which quadratic expression is the constant term equal to the sum of the coefficients of its other two terms?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsThe factors of (x^2+px+21) are ((x+3)(x+7)). What is the value of (p)?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsIf (x^2-14x+c) is a perfect square, what is (c)?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsIf (x^2+kx+16) is a perfect square and (k) is positive, what is the value of (k)?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsWhich of the following expressions remains a quadratic expression in x after simplification?Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsWrite (4x^2-9) using a quadratic identity.Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard MathematicsChoose the correct factorised form of (3x^2+10x+8).Class 9Exploring Algebraic IdentitiesQuadratic expressionsHard