Question

{[(1024÷32-3³)× 20+3×(7²-5²-15°)]÷13+2}²÷9
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Answer 1

Răspuns: 25

Explicație pas cu pas:

{[(32-27)x20 + 3 x (49-25-1)]: 13 + 2} * 2 :9=

[(100+3x23):13+2]*2 :9=

[(100+69):13+2*2: 9=

(169:13+2)*2 :9 = 15*2 :9 = 225:9=25