CBSE  /  Class 8  /  Maths  /  Factorisation

  • 1. 
    The factorisation of a³ + a²b + ab² is

  • a(a² + ab + b²)
  • b(a² + ab + b²)
  • ab(a² + ab + b²)
  • none of these

  • 2. 
    The factorisation of x²yz + xy²z + xyz² is

  • xyz(x + y + z)
  • x²yz(x + y + z)
  • xy²z(x + y + z)
  • xyz²(x + y + z)

  • 3. 
    The factorisation of ax²y + bxy² + cxyz is

  • xy(ax + by + cz)
  • axy(ax + by + cz)
  • bxy(ax + by + cz)
  • cxy(ax + by + cz)

  • 4. 
    The factorisation of
    a (x + y + z) + b(x + y + z) + c(x + y + z) is

  • (a + b + c)(x + y + z)
  • (ab + bc + ca)(x + y + z)
  • (xy + yz + zx)(a + b + c)
  • none of these

  • 5. 
    The factorisation of 6xy - 4y + 6 - 9x is

  • (3x - 2)(2y - 3)
  • (3x + 2)(2y - 3)
  • (3x - 2)(2y + 3)
  • (3x + 2)(2y + 3)

  • 6. 
    The factorisation of x² + xy + 2x + 2y is

  • (x + 2)(x + y)
  • (x + 2)(x - y)
  • (x - 2)(x + y)
  • (x - 2)(x - y)

  • 7. 
    The factorisation of ax + bx - ay - by is

  • (x - y)(a + b)
  • (x + y)(a + b)
  • (x - y)(a - b)
  • (x + y)(a - b)

  • 8. 
    The factorisation of ab - a - b + 1 is

  • (a - 1)(b - 1)
  • (a + 1)(b + 1)
  • (a - 1)(b + 1)
  • (a + 1)(b - 1)

  • 9. 
    The factorisation of
    x² + x + xy + y + zx + z is

  • (x + y + z)(x + 1)
  • (x + y + z)(x + y)
  • (x + y + z)(y + z)
  • (x + y + z)(z + x)

  • 10. 
    The factorisation of x²y² + xy + xy²z + yz + x²yz + xz is

  • (xy + yz + zx)(xy + 1)
  • (xy + yz + zx)(yz + 1)
  • (xy + yz + zx)(zx + 1)
  • none of these
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