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10. Efectuează: a) 3⁵¹: 3⁴⁹ +37¹.3³ +2 024°;
b)(2•5)³+45⁶⁵:9⁶⁵:5⁶⁴+2100⁰
c)3²⁸:27⁸+3³¹-3⁰•[3⁶:3⁵+3³:(3•3²-18¹)]
d){3³+[3²+(13²-5²•5):2²]:2²}:2³​