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Which equation represents the partial sum of the geometric series?

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x