Mathematics · Geometry
PQ is parallel to SR in a trapezium PQRS. It is given that PQ > SR and the diagonals PR and QS intersect at O. If PO = 3x - 15, OQ = x + 9, OR = x - 5 and OS = 5, and x has two values x1 and x2, then the value of (x12 - x22) is:
- 119
- 215
- 313
- 411✓
Correct answer
11
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