Show That 2x² + 11x - 35 = 0
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This Question Is Accompanied By A Drawing Of A Triangle.
Angle ACB = 30˚
Side AB = (x + 5))
Side AC = (2x + 1)
Area Of Triangle = 10cm²

How Do I Answer This Question? I Don't Even Understand Exactly What It Is Asking.

There Is A Second Part To The Question Which Asks:
Find X To 2 Decimal Places.
I'm Fine With That. But I Don't Understand:
Show That 2x² + 11x - 35 = 0

Can Anyone Help?