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

MathematicsWhich of the following is a necessary and sufficient condition for the expression \(x^2+bx+c\), with real coefficients, to be a perfect square of a binomial?Class 9Exploring Algebraic IdentitiesQuadratic expressionsLevel 72Hard MathematicsThe factorised form of (2x^2+mx+10) is ((2x+5)(x+2)). What is (m)?Class 9Exploring Algebraic IdentitiesQuadratic expressionsLevel 72Hard MathematicsUnder which condition can the quadratic trinomial \(x^2+px+q\) be classified as a perfect-square trinomial?Class 9Exploring Algebraic IdentitiesQuadratic expressionsLevel 73Medium MathematicsIf the quadratic expression \(x^2+px+q\) is factorised in the form \((x+m)(x+n)\), which relation between \(m\) and \(n\) is correct?Class 9Exploring Algebraic IdentitiesFactorisationLevel 70Hard MathematicsIf the trinomial \(x^2+mx+n\) is factorised as \((x+p)(x+q)\), which relation between \(p\) and \(q\) is correct?Class 9Exploring Algebraic IdentitiesFactorisationLevel 69Hard MathematicsIf in a square model \(x^2+ax+36\) is a perfect square and (a) is positive, what is the value of (a)?Class 9Exploring Algebraic IdentitiesVisual models of identitiesLevel 66Hard MathematicsIf the expression \(x^2+px+q\) can be written as \((x+r)^2\) for some real number \(r\), which relation between \(p\) and \(q\) is necessary and sufficient?Class 9Exploring Algebraic IdentitiesAlgebraic identitiesLevel 63Hard