Question

a)[(-3)^7]^2:(-3)^11+(-2)^4
b) 100:(-10):(-5)+4•(-4)+(-5)^2

Answer 1

Răspuns:

• a) -11
• b) 11

Explicație pas cu pas:

$\large \bf a)~~ [(-3)^{7}]^{2}:(-3)^{11}+(-2)^{4} =$

$\large \bf (-3)^{7\cdot 2}:(-3)^{11}+2^{4} =$

$\large \bf (-3)^{14}:(-3)^{11}+2^{4} =$

$\large \bf (-3)^{14-11}+2^{4} =$

$\large \bf (-3)^{3}+2^{4} =$

$\large \bf -27+16 =$

$\color{red}\Large \boxed{\bf -11}$

                                     

$\large \bf b)~~ 100:(-10):(-5)+4\cdot(-4)+(-5)^{2} =$

$\large \bf -10:(-5)-16+5^{2} =$

$\large \bf 2-16+5^{2} =$

$\large \bf 2-16+25 =$

$\color{blue}\Large\boxed{ \bf 11}$

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