Evaluate `a^2+ b(b+2)^2` if `a=3,b=-2`

Evaluate : 3a^(3)b^(2) when a =2 ,b=3

Evaluate : ( 2a + 3b ) - ( 2a - 3b )

Find the value of ( a^2/b^2 + b^2/a^2 ) is ( a ) ( a/b + b/a )^2 - 2 ( b ) ( a/b + b/a )^2 + 2 ( c ) ( a/b + b/a )^2 + 4 ( d ) ( a/b + b/a )^2 - 4

If a =0, b =3, find the value of frac(a^2+2ab+b^2)(a^2 -2ab + b^2)

Find and correct the errors in the following mathematical statements. Solve : (2a + 3b)(a - b) = 2a^2 - 3b^2

Evaluate : (iii) ((a)/(2b ) + (2b )/( a) ) ( ( a)/( 2b ) - (2b)/( a))

If a = 2, b = 3 and c = -2, find the value of a^(2)+b^(2)+c^(2)-2b-2bc-2ca+3abc

Find the value of 12a^2+2ab+b^2 and a^3-b^3 when a=1, b=3.

If a/b=7/3 then find the value of (2a^2+3b^2)/(2a^2-3b^2) .