Question

[-10+5.2+(3+2.9)-6.4]

Answer 1

Resposta:

$\large\sf{\blue{-3}}$

Explicação passo-a-passo:

$\large\sf{[-10+5\cdot 2+(3+2\cdot 9)-6\cdot 4]=}$

$\large\sf{[-10+10+(3+18)-24]=}$

$\large\sf{[0+21-24]=}$

$\large\sf{[21-24]=\blue{-3}}$

Espero ter ajudado!!

Answer 2

Resposta:

[-10+5.2+(3+2.9)-6.4] (all dots in math are represented

as multiplication!)

=−10+10+3+(2)(9)−(6)(4)

=0+3+(2)(9)−(6)(4)

=0+3+18−(6)(4)

=0+21−(6)(4)

=21−(6)(4)

=21−24

=−3

Explicação passo a passo: