exam Maths Puzzle Numerical Ability

find the distance between the poionts of intersection of the line with equation y=2x+1 and the parabola with equation y=x^2-4x+6.

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exam Other Question

20x+5(x+1)= 25(x+1)-20

I came up with 20=20x
x=1

This is not one of my choices
no solution
any real number
x=0
x=5 I am just stumped on this one problem. It is located on page 141. It is number 9. T
The given is that: line segment YW bisects line segment AX
angle a is congruent to angle X