Question

$(- 3) {}^{2} \times 7 + ( - 3) {}^{2}$
me ajude por favor, é urgente​

Answer 1

$( - 3) {}^{2} \times 7 + ( - 3) {}^{2} \\ ( - 3) \times ( - 3) \times 7 + ( - 3) {}^{2} \\ 9 \times 7 + ( - 3) \times ( - 3) \\ 9 \times 7 + ( - 3) \times ( - 3) \\ 9 \times 7 + 9 \\ 63 + 9 \\ 72$