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Maths Puzzle
Numerical Ability
Solve each compound inequality. State the solution set using interval notation and graph it
10. -1/2x < 6 or 2/3x < 4
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book Other Question
what happens if i have 3xsquared+5 how would i factor that?
x^2-3x -23=5
(x^2-3x -23-5)=0
(x^2-3x-23-5)=0
(x^2-3x-28)=0
x^2 +4x -7x-28)=0
x(x+4)+ (-7) (x+4)=0
(x-7 (x+4)=0
(x-7)=0 or (x+4)=0
x=7 or x=-4