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It supports mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 1 questions will be solved this time.Among them
☆1 arithmetic calculations
[1/1 Formula]
Work: Calculate the value of equation (-21/5+3)^2+(18/5-2)^2+2×21/5-4×18/5+6 .
Question type: Mathematical calculation
Solution:
(-21/5+3)^2+(18/5-2)^2+2×21/5-4×18/5+6
=-1.2^2+(18/5-2)^2+2×21/5-4×18/5+6
=-1.2^2+1.6^2+2×21/5-4×18/5+6
=1.44+1.6^2+2×21/5-4×18/5+6
=1.44+2.56+2×21/5-4×18/5+6
=1.44+2.56+42/5-4×18/5+6
=1.44+2.56+8.4-4×18/5+6
=1.44+2.56+8.4-72/5+6
=1.44+2.56+8.4-14.4+6
=4+8.4-14.4+6
=12.4-14.4+6
=-2+6
=4
Answer:(-21/5+3)^2+(18/5-2)^2+2×21/5-4×18/5+6=4