निम्नलिखित व्यंजको में से प्रत्येक के पदों एव गुणांकों को पहचानीए :
`(i) 5xyz^2-3zy`
`(ii) 1+x+x^2`
`(iii) 4x^2y^2-4x^2y^2z^2+z^2`
`(iv) 3-pq+qr-rp`
`(v) (x)/(2)+(y)/(2)-xy`
(vi) ` 0.3a -0.6ab+0.5b`.

Identify the terms, their coefficients for each of the following expressions. (i) 5xyz^2-3zy (ii) 1+x+x^2 (iii) 4x^2y^2-4x^2y^2z^2+z^2 (iv) 3-pq+qr-rp (v) x/2+y/2-xy (vi) 0.3a-0.6ab+0.5b

Identify the terms,their coefficients for each of the following expressions.(i) 5xyz^(2)-3zy (ii) 1+x+x^(2)( iil )4x^(2)y^(2)-4x^(2)y^(2)z^(2)+z^(2)( iv) 3-pq+qr-rp(v)(x)/(2)+(y)/(2)-xy(vi)03a-06ab+05b

|[y+z, x, x] , [y, z+x, y] , [z, z, x+y]|= (i) x^2y^2z^2 (ii) 4x^2y^2z^2 (iii) xyz (iv) 4xyz

Multiply : 3a b^2c^3\ b y\ 5a^3b^2c (ii) 4x^2y z\ b y-3/2x^2y z^2

Find the following products: (i) (z^2+2)(z^2-3) (ii) (3x-4y)(2x-4y) (iii) (3x^2-4x y)(3x^2-3x y) (iv) (x+1/5)(x+5)

Multiply : -8/5x^2y z^3\ b y\ -3/4x y^2z (ii) 3/(14)x^2y \ by\ 7/2x^4y

If x = 1, y = 2 and z = 5, find the value of (i) 3x - 2y + 4z (ii) x^(2) + y^(2) + z^(2) (iii) 2x^(2) - 3y^(2) + z^(3) (iv) xy + yz - zx (v) 2x^(2) y - 5yz + xy^(2) (vi) x^(3) - y^(3) - z^(3)

Simplify (4x^(2)y^(2)z - 6xy^(3)z +10 x^(3)yz^(2)) div (-2xyz)

Subtract: (i) 5a + 7b - 2c from 3a - 7b + 4c (ii) a - 2b - 3c from -2a + 5b - 4c (iii) 5x^(2) - 3xy + y^(2) from 7x^(2) - 2xy - 4y^(2) (iv) 6x^(3) - 7x^(2) + 5x - 3 from 4 - 5x + 6x^(2) - 8x^(3) (v) x^(3) + 2x^(2) y + 6xy^(2) - y^(3) from y^(3) - 3xy^(2) - 4x^(2) (vi) -11 x^(2) y^(2) + 7xy - 6 from 9x^(2) y^(2) - 6xy + 9 (vii) -2a + b + 6d from 5a - 2b - 3c

If x = 1, y = - 2 and z = 3. find the value of (i) x^(3) + y^(3) + z^3-3xyz (ii) 3xy^(4) - 15 x^(2) y + 4z