English, asked by ishathakur53903, 7 months ago

?
(a + b)( a - b) =

Answers

Answered by Anonymous
3

Answer:

(a+b)(a-b)

= a²+ab-ab-b²

=a²-b²

Answered by Anonymous
6

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(a  + b)(a - b) =  {a}^{2} -  {b}^{2}

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Some more identities -

  • (x + y)^{2} =  {x}^{2} + 2xy +  {y}^{2}

  •  {(x - y)}^{2} =  {x}^{2} + 2xy +  {y}^{2}

  •  {(x + y + z})^{2} =  {x}^{2} +  {y}^{2} +  {z}^{2} + 2xy + 2yz + 2zx

  • (x + a)(x + b) =  {x}^{2} + (a + b)x + (a \times b)
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