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# (a) Identify terms which contain x and give the coefficient of x

(i) y^{2}x + y (ii) 13y^{2} – 8yx (iii) x + y + 2 (iv) 5 + z + zx

v) 1 + x + xy (vi) 12xy^{2} + 25 (vii) 7x + xy^{2 }

(b) Identify terms which contain y^{2} and give the coefficients of y^{2}

(i) 8 – xy^{2} (ii) 5y^{2} + 7x (iii) 2x^{2}y – 15xy^{2} + 7y^{2}

**Solution:**

(a) Identify terms which contain x and give the coefficient of x:

(i) Term containing x = y^{2}x and Coefficient of x = y^{2}

(ii) Term containing x = - 8yx and Coefficient of x = - 8y

(iii) Term containing x = x and Coefficient of x = 1

(iv) Term containing x = zx and Coefficient of x = z

(v) Term containing x = x; xy and Coefficient of x in both the terms = 1, y

(vi) Term containing x = 12xy^{2} and Coefficient of x = 12y^{2}

(vii) Term containing x = 7x; xy^{2} and Coefficient of x in both the terms = 7, y^{2}

(b) Identify terms which contain y^{2} and give the coefficient of y^{2}.

(i) Term containing y^{2} = - xy^{2} and Coefficient of y^{2 }= -x

(ii) Term containing y^{2} = 5y^{2} and Coefficient of y^{2 }= 5

(iii) Term containing y^{2} = - 15xy^{2}; 7y^{2 }and Coefficient of y^{2 }in both the terms = -15x , 7

**☛ Check: **NCERT Solutions for Class 7 Maths Chapter 12

**Video Solution:**

## (a) Identify terms which contain x and give the coefficient of x. (i) y²x + y (ii) 13y² – 8yx (iii) x + y + 2 (iv) 5 + z + zx (v) 1 + x + xy (vi) 12 xy² + 25 (vii) 7x + xy² (b) Identify terms which contain y² and give the coefficients of y². (i) 8 – xy² (ii) 5y² + 7x (iii) 2x²y – 15xy² + 7y²

Maths NCERT Solutions Class 7 Chapter 12 Exercise 12.1 Question 4

**Summary:**

(a) Identifying terms which contain x and give the coefficient of x: (i) Term containing x = y^{2}x and Coefficient of x = y^{2} (ii) Term containing x = - 8yx and Coefficient of x = - 8y (iii) Term containing x = x and Coefficient of x = 1 (iv) Term containing x = zx and ;Coefficient of x = z (v) Term containing x = x, xy ;and Coefficient of x = 1, y (vi) Term containing x = 12xy^{2} and Coefficient of x = 12y^{2} (vii) Term containing x = 7x, xy^{2} and Coefficient of x = 7, y^{2}

(b) Identify terms which contain y^{2} and give the coefficient of y^{2}. (i) Term containing y^{2} = - xy^{2} and Coefficient of y^{2 }= -x (ii) Term containing y^{2} = 5y^{2} and Coefficient of y^{2}= 5 (iii) Term containing y^{2} = - 15xy^{2}, 7y^{2 }and Coefficient of y^{2 }= -15x, 7

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