If p=-2 find the value of:

(i) 4p + 7

(ii) -3p² + 4p + 7

(iii) -2p³ - 3p² + 4p +7

If = 2x + 3, x + 7 and = x – 3, then find the value of :

i.

ii.

Find the values of the following polynomials at a = – 2 and b = 3:

(a) a² + 2ab + b²

(b) a² – 2ab + b²

(c) a³ + 3a²b + 3ab² + b³

(d) a³ – 3a²b + 3ab² – b³

(e)

(f)

(g)

(h) a² + b² – ab – b² – a²

When a=0, b=-1 find the value of the given expressions:

(i) 2a + 2b

(ii) 2a² + b²+1

(iii) 2a²b + 2ab² + ab

(iv) a² + ab +2

If m = 2, find the value of :

(i) m – 2

(ii) 3m – 5

(iii) 9 – 5m

(iv) 3m² - 2m - 7

(v)

If p = -10, find the value of p² – 2p – 100

Simplify these expressions and find their values, if x=3,a=-1,b=-2

(i) 3x – 5 – x + 9

(ii) 2 - 8x + 4x + 4

(iii) 3a + 5 - 8a + 1

(iv) 10 - 3b- 4 - 5b

(v) 2a - 2b – 4 – 5 + a

What should be the value of a if the value of 2x² + x - a equals to 5, when x = 0?

Find the values of the following expressions when x=-1:

(i) 2x - 7

(ii) -x + 2

(iii) x² + 2x +1

(iv) 2x²- x -2

If z = 10, find the value of z³ – 3(z – 10)

Find the values of following polynomials at m = 1, n = –1 and p = 2:

(a) m + n + p

(b) m² + n² + p²

(c) m³ + n³ + p³

(d) mn + np + pm

(e) m³ + n³ + p³ – 3mnp

(f) m²n² + n²p² + p²m²