SOLUTION: 2x^2 + 5x - 6 = 0 how do you do the step by step factorising? thanks!

Question 194715: 2x^2 + 5x - 6 = 0
how do you do the step by step factorising?
thanks!
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

In a word, you don't. This quadratic trinomial does not factor over the integers. How do I know? Square the coefficient on the first degree term -- 5 squared is 25. Multiply -4 times the coefficient on the high order term times the constant, -4 times 2 times -6 is 48. Combine that with the previous result, 25 plus 48 = 73. 73 is NOT a perfect square, so the polynomial doesn't factor over the integers.

John

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