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Ajutorr 10. Calculati:
c)......... .


Ajutorr 10 Calculati C class=

Răspuns :

a)(5x{7+3x[46+6x(27-8)]}=
5x[7+3x(46+6x15)]=
5x[7+3x(46+90)[=
5x(7+3x136)=
5x(7+408)=
5x415=2075


b) (2⁸)²:2² ⁴x(3²-1)-3⁰x2²=
2¹⁶:2⁸x8-1x2²=
2⁸x2³-1x2²=
2¹¹-2²=2⁹


c)(3¹⁹x25⁹)²:15³⁶=
(3³⁸x25¹⁸):15³⁶