By using the quadratic equation formula: x = -5 and x = 3
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-2x2 + 9x - 12 = 0Then apply the quadratic formula.
To solve for x: 2x2 + 10 = 58 2x2 = 48 x2 = 24 x = √24 x = √4 × √6 x = 2√6
15,000 to the third power that equals pi plus 12 would make it the square root of 7
There is no rational factorisation to this expression.
2x2 + 11x + 15 = (x + 3)(2x + 5).