What is 9[15(6-1)-(9-3)+21] ?

The solution to 9[15(6-1)-(9-3)+21] is 810

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9[15(6-1)-(9-3)+21]

9 [15 (6 - 1) - (9 - 3) + 21]

810

Solution steps

9 [15 (6 - 1) - (9 - 3) + 21]

Follow the PEMDAS order of operations

Calculate within parentheses

[15 (6 - 1) - (9 - 3) + 21] : 90

= 9 \cdot 90

Multiply and divide (left to right)

9 \cdot 90 : 810

= 810

3 - 5 \times (- 7 - 3)

(1 0^{2} - 3^{2}) \times 6 - 3 \times 2

2 4^{2} + 2 9^{2}

4 \times 3 - 5

(- 3)^{3} - (- 3)^{2}