Question

18. Resuelva las siguientes expresiones
1.(-3) (-4) + (-5) X(-2) =
2.-49x12 + 36 -5 + 3 =
3.3-(8-2) x 2 + 15 (-4)] - 12 + 6 =
4.-(9 + 3) x (-2+ (3 (1-5) -(8-4)])=

Les doy estrella corona


me ayudan ​

Answer 1

Respuesta:

1.(-3) (-4) + (-5) X(-2) =

  -2(-3x2-5x)

  -2(-6-5x)

   -2(-6-5x)

2.-49x12 + 36 -5 + 3 =

   -588+36-5+3

   -554

3.3-(8-2) x 2 + 15 (-4)] - 12 + 6 =

    3-6x2+15x(-4)-12+6

     3-6x2-60-12+6

     3-12-60-12+6

     -75

   

Answer 2

Respuesta:

1. (-3) (-4) + (-5)×(-2) = -3 -4 + (+10)= -7 +10 = +3

2. 49 × 12 + 36 - 5 +3 = 588 + 36 -5 + 3 = 624 -5 +3 = 619 +3 = + 622

3. 3 - (8-2) × 2 + 15 (-4) = 3 -8 +2 × 2 + 15 -4 = -3 × 2 +15 - 4 = -6 +15 -4 = 9 -4 = +5

4. - (9 +3 ) × (-2 +[3 ( 1 -5 ) - (8 - 4 )]) = -9 -3 × -2 +[ 3 +1 -5 -8 +4] = -12 × -2 +3 +1 -5 -8 +4 = + 24 +4 -13 +4 = 28 -13 +4 = 15 +4 = +19

Explicación paso a paso:

dame corona ya hice