I have a triangle with it's largest side x+3 (AB). The base side is x+5 (AC). The other side doesn't have a length (BC). Point E lies on AC, AE is 5 and EC is x. Line OE is perpendicular to AB and connects to E with a length of 3. Angle ACB equals 90 degrees. Using similar triangles find x. This question was in a Yr 11 Maths Specialist assignment. The only answers I've got is -13 and -8. Please reply quickly.