exam Maths Puzzle Numerical Ability

5-3 on the outside of an absolute value bars with this euation inside the bars
-8-6. Looks like this 5-3|-8-6| I tried to do the inside firstand got -14 but when I got the outsid

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exam Other Question

use quadratic formula to solve equation

0=x^2+x-20
I am trying to find out how to solve the square root of 72 + 3y square root of 2