Question

2 { 4 [ 7+4(5.3-9)]-3(40-8)}=​

Answer 1

Respuesta:

$2\left\{4\left[7+4\left(5.3-9\right)\right]-3\left(40-8\right)\right\}\\\\2\left(4\left(7+4\left(5.3-9\right)\right)-3\left(40-8\right)\right)\\\\=2\left(-3\left(40-8\right)-31.2\right)\\\\=2\left(-96-31.2\right)\\\\=2\left(-127.2\right)\\\\=-2\cdot \:127.2\\\\=-254.4$