equation 1: m = 8 + 2n
Mathematics, 23.09.2019 04:00 junielouwho
The work of a student to solve a set of equations is shown below:
equation 1: m = 8 + 2n
equation 2: 4m = 4 + 4n
step 1: β4(m) = β4(8 + 2n)
4m = 4 + 4n
step 2: β4m = β32 β 8n
4m = 4 + 4n
step 3: β4m + 4m = β32 β 8n + 4n
step 4: 0 = β32 β 4n
step 5: n = β 8
in which step did the student first make an error?
step 1 step 2 step 3 step 4
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The work of a student to solve a set of equations is shown below:
equation 1: m = 8 + 2n
equation 1: m = 8 + 2n
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