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a fost răspuns

[9 la puterea a doua +2×(5la puterea a treia-7×2la a patra)]×(2×5)la a doua-2la a treia×15la a doua

Răspuns :

Spidie
[9²+2*(5³-7*2⁴)] *(2*5)²-2³*15²=[81+2*(125-7*8)]* 10²-8*225=

=[81+2*(125-56)]* 100−1800= (81+2*69)*100−1800=(81+138)*100−1800=

=21900−1800=20100





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