Question

simplify (a+b+c)²-(a-b-c)²

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Answer 1

Answer:

Hope it will help you...............

Answer 2

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Using

x² - y² = ( x + y ).( x - y )

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(a+b+c)² - (a-b-c)²

= {a+b+c+(a-b-c)}{a+b+c-(a-b-c)}

= {a+$\cancel{b}$+$\cancel{c}$+a-$\cancel{b}$-$\cancel{c}$}{$\cancel{a}$+b+c-a+b+c}

= (2a) (2b+2c)

or

= 4ab + 4ac

or

= 4a ( b+c )

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