(11 plus or minus the square root of 129) divided by 4
x = 5.589454172900137
x = -0.0894541729001368
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Well, well, well, look who's trying to factor a quadratic equation! To factor 2x^2 + 11x + 14, you need to find two numbers that multiply to 28 (2*14) and add up to 11. Those numbers are 2 and 14. So, the factored form is (2x + 7)(x + 2). Voila!
No. It factors to (11x - 13)(2x - 3)
The factors are -1(2x + 1)(3x + 4)
5x + 5 - 8x - 8x + 4 = 9 - 11x
x2 + 11x + 18 (x + 9)(x + 2) CHECK: x2 + 9x + 2x + 18 x2 + 11x + 18 SET EACH EQUAL TO ZERO: x + 9 = 0 x = -9 x + 2 = 0 x = -2 NOW YOU ARE DONE: Solution set: {-9, -2}