MATLAB: Break an equation into 2 lines

long equationMATLAB

If an equation is too long to fit in one line, how to break it into two lines? An example of a long equation is as below and I wish to put it in two lines:
z=x(1)^2-2*x(1)*x(2)+6*x(1)+4*x(2)^2-3*x(2)+7*x(1)+5*x(2)^2-3*x(2)*x(1)^2-2*x(1)

Best Answer

 z=x(1)^2-2*x(1)*x(2)+6*x(1)+4*x(2)^2-3*x(2)...
   +7*x(1)+5*x(2)^2-3*x(2)*x(1)^2-2*x(1)
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