Q.7 Identify like terms in the following:
\( (a)-xy^2, -4yx^2, 8x^2, 2xy^2, 7y^2, -11x^2,\)
\( -100x, -11yx, 20x^2y, -6x^2, y, 2xy, 3x \)
\( (b) 10pq, 7p, 8q, -p^2q^2, -7qp, -100q, -23, 12q^2p^2, \)
\( -5p^2, 41, 2405p, 78qp, 13p^2q, qp^2, 701p^2 \)


Answer :

(a) \((i) – xy^2, 2xy^2 \)
\((ii) – 4yx^2, 20x^2y \)
\((iii) 8x^2, – 11x^2, – 6x^2 \)
\((iv) 7y, y \)
(v) – 100x, 3x
(vi) – 11yx, 2xy (b)(i) 10pq, – 7qp, 78qp
(ii) 7p, 2405p
(iii) 8q, – 100q
(iv) \( – p^2q^2, 12q^2p^2 \)
(v) – 23, 41
(vi) \( – 5p^2, 701p^2 \)
(vii) \(13p^2q, qp^2 \)

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