Ex.12.1 Q5 Algebraic Expressions Solution - NCERT Maths Class 7

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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

  
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