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The roots ARE the answer(s).
x2 - 16 = 0
Add 16 to each side of the equation:
x2 = 16
Take the square root of each side:
x = -4 or +4 .
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∙ 11y ago
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What Are the roots of x2 plus 11x plus 30 equals 0?
x2 + 11x + 30 = 0 (x + 5)(x + 6) = 0 so the roots are -5 and -6
3xx plus 5x -60 equals 0?
Doesn't have integer roots. Quadratic formula gives roots as 3.71 and -5.38.
2XSquared - 3x-11 equals 0?
To the nearest hundredth, roots are -1.71 and 3.21
What roots of the quadratic equation are equivalent to xx-x-12 equals 0?
-4,3 are the roots of this equation, so for the values for which the sum of roots is 1 & product is -12
What are the coordinates of the roots of x2 plus 4x equals 0?
x2 + 4x = 0 ⇒ x(x + 4) = 0 ⇒ x = 0 or x = -4
What is the number and type of roots of the equation x2-4x-32 equals 0?
There are 2 roots to the equation x2-4x-32 equals 0; factored it is (x-8)(x+4); therefore the roots are 8 & -4.
How many complex roots does 6x4 plus x3 - 5 equals 0 have?
It has two complex roots.
Which equation has imaginary roots a.x2-1 equals 0 b.x2-2 equals 0 c.x2 plus x plus 1 equals 0 d.x2-x-1 equals 0?
To find which has imaginary roots, use the discriminant of the quadratic formula (b2 - 4ac) and see if it's less than 0. (The quadratic formula corresponds to general form of a quadratic equation, y = ax2 + bx + c)A) x2 - 1 = 0= 0 - 4(1)(-1) = 4Therefore, the roots are not imaginary.B) x2 - 2 = 0= 0 - 4(1)(-2) = 8Therefore, the roots are not imaginary.C) x2 + x + 1 = 0= 1 - 4(1)(1) = -3Therefore, the roots are imaginary.D) x2 - x - 1 = 0= 1 - 4(1)(-1) = 5Therefore, the roots are not imaginary.The equation x2 + x + 1 = 0 has imaginary roots.
Which are the roots of X3minus3x2minus9xminus5 equals 0?
(x - 5)(x + 1)2
What Are the roots of x2 plus 11x plus 30 equals 0?
x2 + 11x + 30 = 0 (x + 5)(x + 6) = 0 so the roots are -5 and -6
What is the nature of the roots of the equation 2xsquared-6x plus 2 equals 0?
It has roots x = 2.618 and x = 0.38197
What use the discriminant to determine the nature of the roots of x2 plus 2x plus 5 equals 0?
No real roots
What are the roots of the quadratic equation x2 plus 14x plus 45 equals 0?
The roots are: x = -5 and x = -9
3xx plus 5x -60 equals 0?
Doesn't have integer roots. Quadratic formula gives roots as 3.71 and -5.38.
2XSquared - 3x-11 equals 0?
To the nearest hundredth, roots are -1.71 and 3.21
What roots of the quadratic equation are equivalent to xx-x-12 equals 0?
-4,3 are the roots of this equation, so for the values for which the sum of roots is 1 & product is -12
What are the coordinates of the roots of x2 plus 4x equals 0?
x2 + 4x = 0 ⇒ x(x + 4) = 0 ⇒ x = 0 or x = -4
