exam Maths Puzzle Numerical Ability

8(3^6-x)=40
What is the easiest way to solve for X.

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exam Other Question

Please help me. It says to: use the quadratic forumla to solve the following. Leave irrational roots in the simplest form. THe problem is: 2x^2-3x+1=0
I have no idea how to solve it. Please help=)
Thank You=) Hi. Can I have some help with the following problem?

An equation is given. Find the x- and y-intercepts.

y = sqrt(1 - x^2)