Presumably you mean: -2x2-3x+41
If so then the discriminant is: (-3)2-4*-2*41 = 337
The expession is: i/2+i
No, a standard deviation or variance does not have a negative sign. The reason for this is that the deviations from the mean are squared in the formula. Deviations are squared to get rid of signs. In Absolute mean deviation, sum of the deviations is taken ignoring the signs, but there is no justification for doing so. (deviations are not squared here)
The standard form of 12 squared is 122
The discriminant b2-4ac is -23
Oh, dude, that's like basic math, right? So, 2x squared plus x squared is just 3x squared. It's like adding apples to apples, but with math. Easy peasy lemon squeezy!
Nine. A negative times a negative is a positive.
The discriminant is 16
This quadratic expression cannot be factored because its discriminant is less than zero.
This quadratic expression cannot be factored because its discriminant is less than zero
If you mean: 4x squared+7x+4 then the discriminant is -15
It can't be factored because its discriminant is less than zero
The discriminant, for what it is worth in an example such as this, is 11.
The discriminant is 121.
It can't be factored because the discriminant of this quadratic expression is less than zero.
B squared -4ac is the discriminant. you get 0, which means it will have one rational solution.
The discriminant of this quadratic expression is less than zero therefore it cannot be factored.
(7)-2 = (1/7)2
No, a standard deviation or variance does not have a negative sign. The reason for this is that the deviations from the mean are squared in the formula. Deviations are squared to get rid of signs. In Absolute mean deviation, sum of the deviations is taken ignoring the signs, but there is no justification for doing so. (deviations are not squared here)