Question

20. Calculați:
a) 78-(-8+12-22)+5.(-4)²;
b) 10 (-2)³-2-(16-20-3
c) -15-[2-(-35-45)-40]-10³; d) 8²-(-5)² -20 [16+(-20)
zolvăr
Rez

Answer 1

Răspuns:

a) 78-(-8+12-22)+5•(-4)²

a) 78-(-8+12-22)+5•(-4)²78-(-18)+5•4²

a) 78-(-8+12-22)+5•(-4)²78-(-18)+5•4²78+18+5•16

a) 78-(-8+12-22)+5•(-4)²78-(-18)+5•4²78+18+5•1678+18+80

a) 78-(-8+12-22)+5•(-4)²78-(-18)+5•4²78+18+5•1678+18+80176

b) 10 •(-2)³-2-(16-20-3

-10•8-2+7

-80-2+7

-75

c)-15-[2-(-35-45)-40]-10³;

-15-[-2-(-80)-40]-100

-15-(-2+80-40)-1000

-15-38-1000

-1053

d) 8²-(-5)² -20 [16+(-20)

64-25-320-20

-301

Explicație pas cu pas:

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