what is the fomule of( a+b)²
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(a + b)² = a² + 2 ab + b²
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Hi Mate!!
( a + b )² = ( a + b ) × ( a + b )
=>. ( a + b )² = a² + b² + ab + ba
=>. ( a + b )² = a² + b² + 2ab
ab = ba. because multiplication follows cometative law.
( a + b )² = ( a + b ) × ( a + b )
=>. ( a + b )² = a² + b² + ab + ba
=>. ( a + b )² = a² + b² + 2ab
ab = ba. because multiplication follows cometative law.
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