Question

1+2ab -(a square + b square)
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Answer 1

Answer:

$(1 + a - b)(1 - a - b)$

Step-by-step explanation:

$1 + 2ab - ( {a}^{2} + {b}^{2} )$

$1 + 2ab - {a}^{2} - {b}^{2}$

$1 - ( - 2ab + {a}^{2} + {b}^{2} )$

$1 - ( {a}^{2} + {b }^{2} - 2ab)$

$1 - {(a - b)}^{2}$

${1}^{2} - {(a - b)}^{2}$

$(1 + (a - b))(1 - (a - b))$

$(1 + a - b)(1 - a - b)$

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