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Q.4 (a) Identify terms which contain x and give the coefficient of x.
(i)\( y^2x + y\)
(ii) \( 13y^2 – 8yx\)
(iii) \( x + y + 2\)
(iv)\( 5 + z + zx \)
(v) \( 1 + x + xy \)
(vi)\( 12 xy^2 + 25 \)
(vii) \( 7x + xy^2 \)
Answer :

(i) Expression: \( y^2x + y\)
Term: \(y^2x \)
Coefficient of x = \(y^2\)
(ii) Expression: \( 13y^2 – 8yx \)
Term: \(8yx \)
Coefficient of x = \(8y \)
(iii) Expression: \( x + y + 2\)
Term: \( x \)
Coefficient of x = 1
(iv) Expression:\( 5 + z + zx \)
Term: \( zx \)
Coefficient of x = z
(v)Expression:\( 1 + x + xy \)
Term I \( x \)
Term II xy
Coefficient of x = 1, y
(vi) Expression:\( 12 xy^2 + 25 \)
Term: \( 12 xy^2 \)
Coefficient of x = \(12 y^2 \)
(vii) Expression:\( 7x + xy^2 \)
Term I \( 7x \)
Term II \( xy^2\)
Coefficient of x = \( 7 , y^2\)