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Basile [38]
3 years ago
15

what must the length of segment ad be for the quadrilateral to be a parallelogram if ad=3x+7 and cb=5x-9

Mathematics
1 answer:
liraira [26]3 years ago
4 0
You just basically combined them.
3x+7=5x-9
-3x -3x
7=2x-9
x=8
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Answer:

\dfrac{-5-\sqrt{21}}{2},\ \dfrac{-5+\sqrt{21}}{2}

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u^2-3u-3=0.

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