Question

a) 12+√121-2.3+3²-11
me ajudem
​

Answer 1

$12 + \sqrt{121} - 2 \times 3 + { 3}^{2} - 11 \\ 12 + 11 - 2 \times 3 + 3 {}^{2} - 11 \\ 12 - 6 + 9 \\ 15$