Find the value `(a+b)(a-b)` when `a=3 & b=2`.

Find the value of - (2a+3b) (2a-3b)

Determine the value of (a^2+b^2)/(a^3+b^3) when a = 2 + sqrt3 and b = 2-sqrt3

Find the value of (a+b)/(a-b), if (a)/(b)= (5)/(3)

Find the values of a and b, when: (i) (a+3,b-2)=(5,1) (ii) (a+b,2b-3)=(4,-5) (iii) ((a)/(3)+1,b-(1)/(3))=((5)/(3),(2)/(3)) (iv) (a-2,2b+1)=(b-1,a+2)

Find the value of a^(2)+b^(2) when i) a+b=7,ab=12 ii a-b=7,ab=18

Find the value of ( a + b )^2 - 2 ( a - b )^2 + ( a - b ) ( a + b )

If(3a+2b):(4a+b)=5:4, then find the value of (8a+b)/(8a-b) is :

Find the value of z when a=6,b=2,c=5 z=(c)-(b)+(a)+(a)*(b)

If the angles (2a-30^(@)) and (b+60^(@)) make a linear pair, find the values of a and b when a-b=30^(@)