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ICSE-VIII-Mathematics

11: Algebraic Expressions Class 8 Maths

with Solutions -
Qstn# A-4 Prvs-QstnNext-Qstn
  • #4
    Write the degree of each polynomial given below : (i) xy + 7z (ii) x2 - 6x3 + 8 (iii) y - 6y2 + 5y8 (iv) xy + yz2 + zx3
    (vi) x5y7 - 8x3y8 + 10x4y4z4 (i) xy + 7z (ii) x2 - 6x3 + 8 (iii) y - 6y2 + 5y8 (iv) xy + yz2 + zx3
    (vi) x5y7 - 8x3y8 + 10x4y4z4
    Ans : (i) degree = 2 (Polynomial is xy + 7z) (ii) degree = 3 (Polynomial is x2 - 6x3 + 8y) (iii) degree = 8 (Polynomial is y - 6y2 + 5y8) (iv) degree = 3 (Polynomial is xyz - 3)
    (v) degree = 4 (Polynomial is xy + yz2 - xz3)
    (vi) degree = 12 (Polynomial is x5y7 - 8x3y8 + 10x4, y4z4) (i) degree = 2 (Polynomial is xy + 7z) (ii) degree = 3 (Polynomial is x2 - 6x3 + 8y) (iii) degree = 8 (Polynomial is y - 6y2 + 5y8) (iv) degree = 3 (Polynomial is xyz - 3)
    (v) degree = 4 (Polynomial is xy + yz2 - xz3)
    (vi) degree = 12 (Polynomial is x5y7 - 8x3y8 + 10x4, y4z4)
  • #4-i
    xy + 7z
    Ans : degree = 2 (Polynomial is xy + 7z)
  • #4-ii
    x2 - 6x3 + 8
    Ans : degree = 3 (Polynomial is x2 - 6x3 + 8y)
  • #4-iii
    y - 6y2 + 5y8
    Ans : degree = 8 (Polynomial is y - 6y2 + 5y8)
  • #4-iv
    xy + yz2 + zx3
    (vi) x5y7 - 8x3y8 + 10x4y4z4
    Ans : degree = 3 (Polynomial is xyz - 3)
    (v) degree = 4 (Polynomial is xy + yz2 - xz3)
    (vi) degree = 12 (Polynomial is x5y7 - 8x3y8 + 10x4, y4z4)