Find the product of the following pairs of monomials:

i. 3, 7x

ii. – 7x, 3y

iii. – 3a, 5ab

iv. 5a², – 4a

v.

vi. Xy², x²y

vii. x³y⁵, xy²

viii. abc, abc

ix. xyz. x²yz

x. a²b²c³, abc²

Subtract

(i) Subtract 2 a – b from 3a - b

(ii) Subtract -3x + 8y from -7x - 10y

(iii) Subtract 2ab + 5bc - 3ca from 7ab - 2bc + 10ca

(iv) Subtract x⁵ – 2x² – 3x from x³ + 3x² + 1

(v) Subtract 3x²y – 2xy + 2xy² + 5x – 7y – 10 from 15 – 2x + 5y – 11 xy + 2xy² + 8x²y

Find out the degree of the polynomials and the leading coefficients of the polynomials given below:

(i)

(ii) 13x³ – x¹³ – 113

(iii) -77 + 7x² – x⁷

(iv) -181 + 0.8y – 8y² + 115y³ + y⁸

(v) x⁷ – 2x³y⁵ + 3xy⁴ – 10xy + 10

Complete the following table of products:

Find out the product :

(i) 2a, 3a², 5a⁴

(ii) 2x, 4y, 9z

(iii) ab, bc, ca

(iv) m, 4m, 3m², - 6m³

(v) xyz, y²z, yx²

(vi) lm², mn², ln²

(vii) -2p, -3q, -5p²