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Subjects
Class 9MathematicsExploring Algebraic IdentitiesQuadratic expressionsMediumLevel 74
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How should the middle term be split in (x^2-5x+6)?

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Answer and explanation

Correct answer: (-2x-3x)

Here (-2-3=-5) and ((-2)(-3)=6). Exam tip: for a positive constant and negative middle term, take both numbers negative.

Related tags

Quadratic ExpressionsMiddle TermSplitting

Frequently asked questions

What is the correct answer to this question?

(-2x-3x)

Why is this the correct answer?

Here (-2-3=-5) and ((-2)(-3)=6). Exam tip: for a positive constant and negative middle term, take both numbers negative.

Which subject and chapter does this question cover?

This is a Class 9 Mathematics question. Chapter: Exploring Algebraic Identities. Topic: Quadratic expressions.

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10 more MCQs
  1. 1Which expression is a quadratic expression?
  2. 2Based on the powers of the variable \(x\) in the polynomial \(5x^2-3x+7\), what is the degree of this expression?
  3. 3If a, b and c are constants, which condition is necessary for \(ax^2+bx+c\) to be a quadratic expression in x?
  4. 4If a quadratic expression has the general form \(ax^2+bx+c\), which condition on \(a\) is necessary for it to be quadratic?
  5. 5Which of the following expressions represents the square of the difference of two terms?
  6. 6Which of the following quadratic expressions can be factorised using the identity for the difference of two squares?
  7. 7The length of a rectangular garden is \(x+5\) metres and its breadth is \(x+3\) metres. Which quadratic expression represents its area?
  8. 8Under which condition can the quadratic trinomial \(x^2+px+q\) be classified as a perfect-square trinomial?
  9. 9Which is the expansion of ((x+3)(x+2))?
  10. 10Which of the following expressions can be written as a difference of squares of two binomials?
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