Question

Factorize the expressions.
a. - 4ab + (a + b)2​

Answer 1

Answer:

$- 4ab + {(a + b)}^{2} \\ - 4ab + {a}^{2} + {b}^{2} + 2ab \\ {a }^{2} + {b}^{2} - 2ab \\ {(a - b)}^{2}$

Answer 2

Answer:

$- 4ab + ( {a + b) }^{2} \\ = - 4ab + {a }^{2} + 2ab + {b }^{2} \\ = - 2ab + {a}^{2} + {b }^{2} \\ = - 2ab(a + b)(a - b)$

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