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October 22, 2014

October 22, 2014

Posted by **keirsa** on Tuesday, February 16, 2010 at 8:44pm.

8 − (2 E 3 − 9) = 8 - (-12) = 20

If not, please explain what the student did wrong?

- Algebra -
**PsyDAG**, Wednesday, February 17, 2010 at 10:30amI don't know what "E" means. If it is exponent, an exponent is indicated online by "^" (e.g., x^2 = x squared).

8 - (2^3 - 9) = 8 - (8-9) = 8 -(-1) = 8 + 1 = 9

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