Explicación:
1.) (7²÷(-7)+10)×((-4)-9)
(7²÷(-7)+10) = (49÷(-7)+10) = (-7+10) = 3
3×((-4)-9) = 3×(-13) = -39
2.) (-5)+7-5×(6²÷(-2))
(6²÷(-2)) = (36÷(-2)) = -18
-5 + 7 - 5×(-18) = -5 + 7 + 90 = 92
3.) (3²×(-9))+7-4
(3²×(-9)) = (9×(-9)) = -81
-81 + 7 - 4 = -78
4.) 8+4×3²÷((-8)-10)
3² = 9
8 + 4×9÷((-8)-10) = 8 + 4×9÷(-18) = 8 + 4×(-0.5) = 8 - 2 = 6
5.) [(-7)-2)²×2]÷((-4)+9)
((-7)-2) = (-9)² = 81
[(-7)-2)²×2]÷((-4)+9) = 81×2÷5 = 162÷5 = 32.4
6.) (3³-(-2)+5×((-10)÷10)
((-10)÷10) = (-1)
3³-(-2)+5×(-1) = 27-(-2)+5×(-1) = 27+2-5 = 24
7.) (-10)÷(5-3²+2)×(-2)
(5-3²+2) = (5-9+2) = (-2)
(-10)÷(-2)×(-2) = 5×(-2) = -10
8.) [(10-7)²×(-8)]÷9+8
(10-7)² = (3)² = 9
[(10-7)²×(-8)]÷9+8 = 9×(-8)÷9+8 = -8+8 = 0
9.) 8²-10+6×((-8)÷(4))
((-8)÷(4)) = (-2)
8²-10+6×(-2) = 64-10-12 = 42
10.) (8+6²÷(-2)-(-7)×5
6²÷(-2) = 36÷(-2) = -18
8+(-18)-(-7)×5 = 8-18+35 = 25
11.) ((9-3+(-6))×2)÷4²
(9-3+(-6)) = 0
((9-3+(-6))×2)÷4² = 0×2÷16 = 0
12.) [(10-7)²×(-8)]÷9+8 (repetido)
13.) (8+6²)÷(-2)-(-7)×5
6² = 36
(8+36)÷(-2)-(-7)×5 = 44÷(-2)-(-7)×5 = -22-(-35) = 13
14.) [(-6)+(-5)-4³÷(-4))×5
4³÷(-4) = 64÷(-4) = -16
[(-6)+(-5)-16)×5 = (-11-16)×5 = (-27)×5 = -135
