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What is the nature of the roots of 4x2 plus 15x plus 10 equals 0?
The discriminant of the equation ... (b2-4ac) = (225-160) ... is real and positive, so the roots are real and unequal.
What is the discriminant of 4x2-2x plus 4 equals 0?
Discriminant = b2-4ac = (-2)2-(4*4*4) = -60
What is the discriminant of this polynomial 4x2-20x plus 25?
The discriminant is 0.
What is the value of the discriminant of the polynimial 4x2 plus 7x plus 4?
72-4*4*4 = -15 The discriminant is less than zero so there's no solutions to the quadratic equation.
What is the discriminant for this equation 4x2-3x-8 equals 0?
The coefficients are a = 4, b = -3, c = -8. The discriminant is calculated with the formula b2 - 4ac, so just replace the coefficients in this formula.
What is the value of the discriminant of the polynomial 4x2 plus 7x plus 4?
zero
How many real solutions are there to the equqtion 4x2 plus x-1 equals 0?
It has 2 real solutions because the discriminant is greater than zero.
What is 4x2 plus 3 equals?
4x2 plus 3=11
How do you Factorise 4x2 plus 6x plus 3?
It can't be factored because the discriminant is less than zero.
How many real solutions are there to the equation shown below 4x2 plus x - 1 equals 0?
2.
Can you put the equation x2 - 5 -4x2 plus 3x equals 0 in the form ax2 plus bx plus c equals 0?
x2-5-4x2+3x = 0 -3x2+3x-5 = 0 or as 3x2-3x+5 = 0
How do you prove that the line y equals 2x plus 1.25 is tangent to the curve y squared equals 10x?
If the discriminant b2-4ac of the quadratic equation equals zero then it will have two equal roots meaning that the line is tagent to the curve. So by implication: (2x+1.25)(2x+1.25) = 10x 4x2-5x+25/16 = 0 Hence use the discriminant of b2-4ac :- (-5)2-4*4*25/16 = 0 Therefore the discriminant equals 0 so the line will be tangent to the curve. In fact working out the equation gives x having two equal roots of 5/8
