exam Maths Puzzle Numerical Ability

Solve using the quadratic formula

x^2-3x=7x-2

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exam Other Question

please tell me if I have the correct solution to this problem I have to solve by graphing and find the solution
x-2y=8
3x-2y=12 this is what I got for the solution (0,6) (-2,0) a) Solve 2x^2=6 (my solution is x=sqrt3, -sqrt3.
b) Find the x-intercepts of f(x)=2x^2-6