Given the figure below, find the values of x and z.
(8x - 20)
(5x + 28)

Sherina wrote and solved the equation. x-56=230 x-56-56=230-56 x=174 what was sherina’s error? sherina’s work is correct. sherina only needed to subtract 56 from 230. sherina made a subtraction error when subtracting 56 from 230. sherina should have added 56 to both sides of the equation.

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

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