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Mathematics, 15.10.2019 19:00 devo7420
Fatima evaluated the expression when m = -2 and n = 4. her work is shown below.
what was fatima’s error?
-she subtracted the exponents incorrectly when simplifying the expression.
-she substituted the wrong values for the variables.
-she applied the exponent -2 to 4(-2) instead of applying the exponent to just -2.
-she found an incorrect value for -8^-2 since the value should be negative.
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Fatima evaluated the expression when m = -2 and n = 4. her work is shown below.
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