D. Check Up
Completion requirements
D. Check Up
- Multiply «math style=¨font-family:`Times New Roman`¨ xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»(«/mo»«mo»-«/mo»«mi»x«/mi»«mo»-«/mo»«mn»2«/mn»«mi»y«/mi»«mo»)«/mo»«mo»(«/mo»«mo»-«/mo»«mn»3«/mn»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»)«/mo»«/math» using grid multiplication without algebra tiles.
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