1. x^2 + 2x^2 – 9x – 18 = 0
2. x^3 – 7x^2 = -5x – 35
2. x^3 – 7x^2 = -5x – 35
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Do you mean x³ + 2x² – 9x – 18 = 0
(x³ + 2x²) – ( 9x + 18) = 0
x²( x + 2) - 9(x + 2) = 0
(x² - 9) (x + 2) = 0
(x - 3) (x + 3 )(x + 2) = 0
x = 3 or x = -3 or x = -2
I hope this helps you!
(x³ + 2x²) – ( 9x + 18) = 0
x²( x + 2) - 9(x + 2) = 0
(x² - 9) (x + 2) = 0
(x - 3) (x + 3 )(x + 2) = 0
x = 3 or x = -3 or x = -2
I hope this helps you!