Given the inequality: 14−4x>0 To solve this inequality, we must first solve the corresponding equation: 14−4x=0 Solve: Given the equation 14−4x=0 so 14−4x=0 Move free summands (without x) from left part to right part, we given: −4x=−14 Divide both parts of the equation by -4
x = -14 / (-4)
We get the answer: x = 7/2 x1=27 x1=27 This roots x1=27 is the points with change the sign of the inequality expression. First define with the sign to the leftmost point: x0<x1 For example, let's take the point x0=x1−101 = −101+27 = 517 substitute to the expression 14−4x>0 14−54⋅17>0