जोड़िए :
`(i) 5m(3-m)` एव `6m^2-13m`
`(ii) 4y (3y^2+5y-7)` एव `2(y^3-4y^2+5)`

Add (i) 5m(3-m) and 6m^2-13m-13m (ii) 4y(3y^2+5y-7) and 2(y^3-4y^2+5)

Add (i)5m(3-m) and 6m^(2)-13m-13m (ii) 4y(3y^(2)+5y-7) and 2(y^(3)-4y^(2)+5)

Add :5m(3-m) and 6m^(2)-13m4y(3y^(2)+5y-7) and 2(y^(3)-4y^(2)+5)

Add : 5m\ (3-m)a n d\ 6m^2-13 m 4y\ (3y^2+5y-7)a n d\ 2\ (y^3-4y^2+5)

Add : 4y (3y^2 + 5y – 7) and 2 (y^3 – 4y^2 + 5)

Add : 5m (3 – m) and 6m^2 – 13m

Divide: (i) 5m^(2) - 30 m^(2) + 45m by 5m (ii) 8x^(2) y^(2) - 6xy + 10 x^(2) y^(3) by 2xy (iii) 9x^(2) y - 6xy + 12 xy^(2) by - 3xy (iv) 12x^(4) + 8x^(3) - 6x^(2) by -2x^(2)

Simplify : (i) (5x - 9y) - (-7x + y) (ii) (x^(2) -x) -(1)/(2)(x - 3 + 3x^(2)) (iii) [7 - 2x + 5y - (x -y)]-(5x + 3y -7) (iv) ((1)/(3)y^(2) - (4)/(7)y + 5) - ((2)/(7)y - (2)/(3)y^(2) + 2) - ((1)/(7)y - 3 + 2y^(2))

Multiply: (i) (3x^2+y^2)b y\ (2x^2+3y^2) (ii) (3/5x+1/2y)b y\ (5/6x+4y)

Factorise the expressions and divide them as directed. (i) (y^2+7y+10) -: (y+5) (ii) (m^2-14m-32) -: (m+2) (iii) (5p^2-25p+20) -: (p-1) (iv) (4yz(z^2+6z-16) -: 2y (z+8) (v) 5pq(p^2-q^2) -: 2p(p+q) (vi) 12xy (9x62-16y^2) -: 4xy (3x+4y) (vii) 39y^3(50y^2-98) -: 26y^2(5y+7)