" 97."9-a^(2)+2ab-b^(2)

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Verify the identity (a + b)^(2) -= a^(2) + 2ab + b^(2) geometrically by taking a = 5 units, b = 9 units

Factorise the using the identity a ^(2) + 2 ab + b ^(2) = (a + b) ^(2) 9x ^(2) + 2 xy + (y ^(2))/(9)

Factorise the using the identity a ^(2) + 2 ab + b ^(2) = (a + b) ^(2) a ^(2) x ^(2) + 6ax + 9

Factorise the expression using the identity a ^(2) + 2 ab + b ^(2) = (a + b) ^(2) x ^(2) + 6x + 9

Factorise the using the identity a ^(2) + 2 ab + b ^(2) = (a + b) ^(2) 4x ^(2) + 12 x + 9

Factorise the using the identity a ^(2) + 2 ab + b ^(2) = (a + b) ^(2) 9x ^(2) + 24 x + 16

Factorise the using the identity a ^(2) + 2 ab + b ^(2) = (a + b) ^(2) 9x ^(2) + 30 x + 25

Divide : 4a^(2) + 12ab + 9b^(2) - 25c^(2) by 2a + 3b + 5c

Factorize 9-a^2+2ab-b^2