Question

calculați :300-4×{18+(-3)×[20-5×(25-(-3)³)]-3²}+[(-7)³]⁵:(-7)¹³​

Answer 1

sper ca te am ajutat!!!!

Answer 2

Răspuns: $\red{\bf \underline{-2~567}}$

Explicație pas cu pas:

$\bf 300-4\cdot \big\{18+(-3)\cdot\big[20-5\cdot\big(25-(-3)^3\big)\big]-3^2\big\}+\big[(-7)^3\big]^5:(-7)^{13}=$

$\bf 300-4\cdot \big\{18+(-3)\cdot\big[20-5\cdot\big(25-(-27)\big)\big]-3^2\big\}+(-7)^{3\cdot5}:(-7)^{13}=$

$\bf 300-4\cdot \big\{18+(-3)\cdot\big[20-5\cdot\big(25+27)\big)\big]-9\big\}+(-7)^{15}:(-7)^{13}=$

$\bf 300-4\cdot \big[18+(-3)\cdot\big(20-5\cdot52\big)-9\big]+(-7)^{15-13}=$

$\bf 300-4\cdot \big[18+(-3)\cdot\big(20-260\big)-9\big]+(-7)^{2}=$

$\bf 300-4\cdot \big[18+(-3)\cdot\big(-240\big)-9\big]+49=$

$\bf 300-4\cdot \big(18+720-9\big)+49=$

$\bf 300-4\cdot 729+49=$

$\bf 300-2916+49=$

$\bf -2616+49=$

$\red{\bf \underline{-2~567}}$              

==pav38==