Question

Calculati tinand cont de ordinea efectuari operatilor

a)(7+3*4)-(5+5*4)=
b)-3*[2-(-6)²:(-9)]-2*[6-(-8)]=
c)[(-5)²*(-1-4)⁴*(+3-8)³]⁵:(-5)⁴³=
d) (-25:(-5)+27:(-9)]*3=
e) [(-3)²⁹: 3²⁸+2*(-5)]:13+(-11)⁰=
f) [|-3²+(-3)³|-(-3) +(-2)* (4-6)]: (-3) =
​

Answer 1

Răspuns:

a)(7+3*4)-(5+5*4)=

(7+12) -(5+20) =19-25=-6

b)-3*[2-(-6)²:(-9)]-2*[6-(-8)]=

-3(2-36:(-9)) - 2×14=

- 3(2+4)-28=-18-28=-46

c)[(-5)²*(-1-4)⁴*(+3-8)³]⁵:(-5)⁴³=

[25×(-5)^4×(-5)^3]^ 5:(-5)^43=

[ 25×625×(-125)]^5:(-5)^43=

[ 5^2×5^4×(-5)^3]^5:(-5)^43=

[(-5)^9]^5:(-5)^43=(-5)^45:(-5)^43=5^2=25

d) (-25:(-5)+27:(-9)]*3=[5+(-3)]×3=2×3=6

e) [(-3)²⁹: 3²⁸+2*(-5)]:13+(-11)⁰=

[(-3)^1-10]:13+1=(-3-10):13+1=-1+1=0

f) [|-3²+(-3)³|-(-3) +(-2)* (4-6)]: (-3) =

[|9-27|+3+(-2)×2]:(-3)=

(18+3-4):(-3)=17:(-3)=-17/3

Explicație pas- cu pas: