Lily begins solving the equation 4(x-1)-x=3(x+5)-11. Her work is shown below. 4(x-1) - x = 3 (x+5)-11 4x −4) −x =3x +15 −11 3x-4
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Answer:
x = ±
It didn't insert but just look up the quadratic formula.
x = ± root [(b²-4ac]/2a]