Question

2. (6×7.raiz quadrada de 9:3 elevado a 2+(21-5) raiz quadrada de 4+49-100

Answer 1

2(6x7x$\sqrt{9}$/3²+(21-5)$\sqrt{4}$+49-100)
2(6x7x3/3²+(21-5)2+49-100)
2(6x7x3/9+(21-5)2+49-100)
2(14+16x2+49-100)
2(14+32+49-100)
2(-5)
-10

Resposta= -10