Solve the following equations and inequalities, please a) −x2+2x>1 b) [1−3x]=5 c) [4x−3]≤2

Miguel Davenport

Miguel Davenport

Answered

2022-01-23

Solve the following equations and inequalities, please
a) x2+2x>1
b) [13x]=5
c) [4x3]2

Answer & Explanation

bemolizisqt

bemolizisqt

Expert

2022-01-24Added 16 answers

a) x2+2x>1
x2+2x>1
Multiply the equation by -1
x22x<1
Add 1 to both sides
x22x+1<1+1
x22x+1<0
(x1)2<0
x1<0
x<1
b) [13x]=5
3x=15
3x=4
Divide by 3
x=43
c) [4x3]2
Add 3 to both sides
4x3+32+3
4x5
x54

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