72-4*4*4 = -15
The discriminant is less than zero so there's no solutions to the quadratic equation.
zero
It can't be factored because the discriminant is less than zero.
It's a quadratic expression which can't be factorized because its discriminant is less than zero.
The discriminant of the equation ... (b2-4ac) = (225-160) ... is real and positive, so the roots are real and unequal.
Without knowing the plus or minus value of 40 it's difficult to say but in general:- If the discriminant of a quadratic equation = 0 then it touches the x axis at 1 point If the discriminant is greater than zero then it touches the x axis at 2 points If the discriminant is less than zero then it does not touch the x axis
zero
The discriminant is 0.
The discriminant is 33.
Discriminant = b2-4ac = (-2)2-(4*4*4) = -60
It can't be factored because the discriminant is less than zero.
The given quadratic expression can not be factorized because its discriminant is less than zero.
It's a quadratic expression which can't be factorized because its discriminant is less than zero.
The discriminant of the equation ... (b2-4ac) = (225-160) ... is real and positive, so the roots are real and unequal.
It has 2 real solutions because the discriminant is greater than zero.
Without knowing the plus or minus value of 40 it's difficult to say but in general:- If the discriminant of a quadratic equation = 0 then it touches the x axis at 1 point If the discriminant is greater than zero then it touches the x axis at 2 points If the discriminant is less than zero then it does not touch the x axis
16
c = 25 4x2 + 20x + 25 (2x + 5)(2x + 5)