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Alexeev081 [22]
3 years ago
15

Please help me if you do not know the answer dont answer it​

Mathematics
1 answer:
Ierofanga [76]3 years ago
3 0
Factor 28r^2 + 35ry: 7r(4r+5y)
Factor -4x-5xy: -x(4r + 5y)
= 7r(4r + 5y)-x(4r + 5y)
= (4r + 5y) (7r -x)
Hope this helps, sorry if it’s confusing
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In a quadrilateral ABCD, AB || DC and AD || BC. Find the perimeter of triangle COD if the diagonals of the quadrilateral interse
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Draw a diagram as shown below.

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Because the diagonals bisect each other at O, therefore
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Because AB = 13, therefore DC = 13.
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