Question

-2x(-4)x3x(+5)x-1=?
Pfv preciso pra 30 minutos

Answer 1

Resposta:

$( - 2 \times - 4 \times 3 \times 5)xxxx - 1$

$- 2 \times - 4 = 8$

$(8 \times 3 \times 5)xxxx - 1$

$8 \times 3 = 24$

$(24 \times 5)xxxx - 1$

$24 \times 5 = 120$

$120xxxx - 1$

$120xxxx = 120x {}^{4}$

$\boxed {\red {\boxed{\blue {\boxed {\pink {\boxed {120x {}^{4} - 1 }}}}}}}$