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PIMSO 2021 - Mathematics - Grade 9 - National Round Question 9

PIMSO Maths · PIMSO 2021 - Mathematics - Grade 9 - National Round

Question 9

If $b\lt a\lt0$, $c>0$, and $|c|>|b|>|a|$, then simplify $2|a+b|+|c+b|+|c+a|$?

Input format: use ^ for powers, sqrt(...) for square roots, * for multiplication, and / for division.