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

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

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

If ( a -b ) : ( a + b ) = 1/5 , find the value of ( a^2 - b^2 ) : ( a^2 + b^2 )

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

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 (b-7)^(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 sqrt((a+b +c)^(2) + (a +b+c)^(2) + 2(c^(2) -a^(2) -b^(2) -2ab))

find the value of (a^(2)-b^(2))