x^2 + 2x - 10
Does not factor
So apply the Quadratic Eq'n
x = [ -2 +/- sqrt[(2^2) - 4(1)(-10)]}/ 2(1)
x = { -2 +/- sqrt[4 + 40]} / 2
x = { -2 +/- sqrt(44]}/ 2
x = { - 2 +/- 6.6332...} / 2
x = -8.6332... / 2 = -4.3166....
&
x = 4.6332... / 2 = 2.3166...
Hencevthere are two answers.
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It is a quadratic equation that has 2 solutions
No. It's a quadratic equation, and it has two solutions.
There are none. For this equation, there is nonreal answer, as the graph of the quadratic does not pass below the x-axis
The quadratic equation in standard form is: ax2 + bx + c = 0. The solution is x = [-b ± √b2- 4ac)] ÷ 2a You can use either plus or minus - a quadratic equation may have two solutions.
The discriminant is -439 and so there are no real solutions.