find the sum of `2a (a^2 + b^2), 2b^2 (b - a)` and `12b (a^2 - b^2)`

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

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

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

Find the sum of the expressions - 3a ^(2) + 2 ab - 4b^(2) and - 6a ^(2) + 4b.

If a^(2)+b^(2)=25 and ab=12 find a^(2)-b^(2)

Find the value of (2.3a^(5)b^(2)) xx(1.2 a^(2)b^(2)) when a = 1 and b = 0.5

The sum of (a)/(a^(2)-b^(2)) and (b)/(a^(2)-b^(2)) is