Answer to Question #211323 in Algebra for Lebo

Question #211323

(2x+5)(x²-2)=0

Expert's answer

(2x+5)(x²-2)=0

Steps:

(2x+5)=0
2x=-5
x₁= "-\\frac{5}{2}"
(x²-2)=0
x²=2
x₂= "\\sqrt{2}"
x₃= "-\\sqrt{2}"

The solutions are:

x₁= "-\\frac{5}{2}" , x₂= "\\sqrt{2}" , x₃= "-\\sqrt{2}"

Plotting:

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