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Order of operations with rational numbers
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Learn it BEDMAS works the same with negatives and fractions. Put negative numbers in brackets when substituting or squaring.
Example: $(-2 + 5)^2 - 4 \times (-3)$
- Brackets: $-2 + 5 = 3$.
- Exponent: $3^2 = 9$.
- Multiply: $4 \times (-3) = -12$.
- $9 - (-12) = 21$.
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