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a) (-4)³×|(-5)³+13x]=(-2)⁵ b) (-4)³×[(-5)+13x]=(-2)⁵x c) (-2)⁵×[3×(7=--2


Răspuns :

Explicație pas cu pas:

-4^3x[(-5) ^3+13x] =-(2) ^5

4^3x(125+13x)=(-2)^5

-4^3*(-125+13x)=-32

-64(-125+13x)=-32

8000-832x=-32-2

-832x=-32-8000

-832x=-8032

X=251/26

B) - 4^3x[(-5) +13x) =(-2) ^5*x

-4^3*(-5+13x) =(-3)^5*x

-4^3*(-5+13x) =-2^5x

-64(-5+13x) =-2^5

-64(-5+13x)=-32x

320-832x=-32x

-832x=-32x-320

-832x+32x=-320

-800x=-320

X=2/5

C)nu știu cred ca i greșit la pct. C