Ex.12.1 Q5 Algebraic Expressions Solution - NCERT Maths Class 7
Question
Classify into monomials, binomials and trinomials.
(i) \(4y – 7z\) (ii) \(y^2\) (iii) \(x + y – xy\) (iv) \(100\)
(v) \(ab – a – b\) (vi) \(5 – 3t\) (vii) \(4p^2q – 4pq^2\) (viii) \(7mn\)
(ix) \(z^2 – 3z + 8\) (x) \(a^2 + b^2\) (xi) \(z^2 + z\) (xii) \(1 + x + x^2\)
Text Solution
Steps:
Monomial means expression having single term.
Binomials means expression having two terms.
Trinomials means expression having three terms.
S No. |
Expression |
No. of terms |
Classification |
(i) |
\(4y – 7z\) |
\(2\) |
Binomial |
(ii) |
\(y^2\) |
\(1\) |
Monomial |
(iii) |
\(x + y – xy\) |
\(3\) |
Trinomial |
(iv) |
\(100\) |
\(1\) |
Monomial |
(v) |
\(ab – a – b\) |
\(3\) |
Trinomial |
(vi) |
\(5 – 3t\) |
\(2\) |
Binomial |
(vii) |
\(4p^2q – 4pq^ 2\) |
\(2\) |
Binomial |
(viii) |
\(7mn\) |
\(1\) |
Monomial |
(ix) |
\(z^2 – 3z + 8\) |
\(3\) |
Trinomial |
(x) |
\(a^2 + b^2\) |
\(2\) |
Binomial |
(xi) |
\(z^2 + z\) |
\(2\) |
Binomial |
(xii) |
\(1 + x + x^2\) |
\(3\) |
Trinomial |