The graph below represents the total shipping cost of x items for four different companies
2 answers:
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<span>x^2+4x-1/(x+2)^2=0
x^2 + 4x - 1 = 0
</span>
;
where a = 1, b = 4 and c = -1
x^2 + 4x - 1 = 0
</span>
where a = 1, b = 4 and c = -1