Answer:
x = 8
Step-by-step explanation:
Given 2 intersecting chords in a circle, then the product of the parts of one chord is equal to the product of the parts of the other chord, that is
5x = 4 × 10 = 40 ( divide both sides by 5 )
x = 8
A conjuate is real numbers like the conjuate of x and y would be a real number
Is that all the information? it could literally be any number with only that.