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Calculeaza: 4500-5x450-5x(5^55:25^27+10^2:4)x(1x2^2x3^3-3x6^2+7):42.

Răspuns :

4500-5×450-5x(5^55:25^27+10^2:4)×(1x2^2×3^3-3×6^2+7):42= 
=4500-2250-5×(5^55:5^54+5^2×2^2:4)×(4×27-108+7):42= 
=2250-5×(5+5^2)×(108-108+7):42= 
=2250-5×30×7:42= 
=2250-25=2225