Quadratics

posted by Crystal

So there's a right angled triangle and it has another small triangle on the top and the right side is 10cm long (including the side of the small triangle). 10-x is bc. I know the base is 3+2xcm.

[bc] is the same as [be]. [cd] is 3 cm more than twice the length of [be]. Find the length of [be].

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