Solve (2x - 5)(x^3) = 2x^2 - 9

Evaluate

(2 x - 5) x^{3} = 2 x^{2} - 9

Multiply the terms

x^{3} (2 x - 5) = 2 x^{2} - 9

Move the expression to the left side

x^{3} (2 x - 5) - (2 x^{2} - 9) = 0

If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses

x^{3} (2 x - 5) - 2 x^{2} + 9 = 0

Calculate

More Steps

2 x^{4} - 5 x^{3} - 2 x^{2} + 9 = 0

Calculate

x \approx 2.633313 x \approx 1.326702 x \approx - 0.730008 + 0.868994 i x \approx - 0.730008 - 0.868994 i

Solution

x_{1} \approx - 0.730008 - 0.868994 i, x_{2} \approx - 0.730008 + 0.868994 i, x_{3} \approx 1.326702, x_{4} \approx 2.633313

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