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x^3-6x^2-7x+60=0

can you tell me how you got the answer also? I would like to understand this please

 Feb 8, 2016

Best Answer 

 #1
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+5

Solve for x: x^3-6 x^2-7 x+60 = 0                                                                                                          The left hand side factors into a product with three terms: (x-5) (x-4) (x+3) = 0 Split into three equations: x-5 = 0 or x-4 = 0 or x+3 = 0 Add 5 to both sides: x = 5 or x-4 = 0 or x+3 = 0 Add 4 to both sides: x = 5 or x = 4 or x+3 = 0 Subtract 3 from both sides: Answer: | | x = 5   or x = 4   or x = -3

 Feb 8, 2016
 #1
avatar
+5
Best Answer

Solve for x: x^3-6 x^2-7 x+60 = 0                                                                                                          The left hand side factors into a product with three terms: (x-5) (x-4) (x+3) = 0 Split into three equations: x-5 = 0 or x-4 = 0 or x+3 = 0 Add 5 to both sides: x = 5 or x-4 = 0 or x+3 = 0 Add 4 to both sides: x = 5 or x = 4 or x+3 = 0 Subtract 3 from both sides: Answer: | | x = 5   or x = 4   or x = -3

Guest Feb 8, 2016

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