Question

write the eight identities (a+b)2=a+b+2ab verify the algerbric Identity​

Answer 1

• ( a + b )² = a² + 2ab + b²

• ( a - b )² = a² - 2ab + b²

• a² - b² = ( a + b )( a - b )

• ( x + a )( x + b ) = x² + ( a+b ) x + ab

• ( a + b + c )² = a² + b² + c² + 2ab + 2bc + 2ca

• ( a + b )³ = a³ + b³ + 3ab ( a + b )

• ( a-b )³ = a³ - b³ - 3ab ( a-b )

• a³+ b³+c³ - 3abc = ( a+b+c ) ( a² + b² + c² - ab - bc - ca )