Question

que sea con desarrollo porfavor

Answer 1

RESOLUCIÓN:

$| |4 |5| |7 |20 | |$

$|4 |5 | = {4}^{2} - 2 \times 5 = 16 - 10 = 6$

$|7 |20 | = {7}^{2} - 2 \times 20 = 49 - 40 = 9$

$| |4 |5| |7 |20 | | \\ |6 |9 | \\ {6}^{2} - 2 \times 9 \\ 36 - 18 \\ 18$

RESPUESTA:

$B) \: 18$