Question

(a-c) (-a+c) evaluate using appropriate identities

Answer 1

$- {a}^{2} + ac \: + ac \: - {c}^{2}$

$2ac \: - {a \: }^{2} - {c}^{2}$

Multiply throughout by - 1

${a \: }^{2} - 2ac \: + {c}^{2}$

${(a - c)}^{2}$