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Leni [432]
3 years ago
6

Error analysis

Mathematics
2 answers:
Bas_tet [7]3 years ago
8 0
2(2x-1) + 2(3x)=4x-2+6x = 10x - 2 & not <span>=10x-1</span>
Aliun [14]3 years ago
3 0
One side (l) = 2x-1
other side (w) = 3x

perimiter = all of the sides added together

perimiter = 2l + 2w

perimiter = 2(2x-1) + 2(3x)

2(2x) - 2(1) + 2(3x) = 4x - 2 + 6x

perimiter = 10x - 2

<em>The previous statement is incorrect because the student did not distribute the 2 onto the -1.</em>

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