If the negative number is "-a", then you can say the cube root is "-(cube root of a)"
Because if you cube a negative number, you get a negative number. So if you cube root a negative number, you get a negative number.
Ex) cube root of -8 = -2
Because (-2)^3 = -8
But if you want to find the complex cube roots, you can make an equation:
"x^3=-a" or "x^3+a=0"
We know one of the roots is "-(cube root of a)" so you can factor the equation by (x+(cube root of a))
And then you use the quadratic formula for the quadratic equation you're left with.
Ex) x^3=-8 or x^3+8=0
Since -2 is a root, factor it by (x+2)
x^3+8=(x+2)(x^2-2x+4)
Using the quadratic formula, you get "1+i√3" and "1-i√3"
Therefore the three cube roots of -8 is <"-2", "1+i√3", "1-i√3">
The cube root of a negative number is negative.
The cube root is the side of a cube.
The cube root of the number 8 is 2(two). Cube Root-a number when multiplied 3 times equals a given number.
-7
It is: -2
The cube root of a negative number is negative.
The cube root of a negative number is negative
yes, you can find a real root to the cube root of any negative real number. There will also be two complex roots which satisfy it, as well.
You cannot get real square root of a negative number because two numbers multiplied by themselves are always positive You can always get a real cube root of a negative number because three negative numbers multiplied by themselves give a negative .
No, the cube root of -9 is an irrational number.
To find the cube root of a number, enter the number followed by ^(1/3).To find the cube root of a number, enter the number followed by ^(1/3).To find the cube root of a number, enter the number followed by ^(1/3).To find the cube root of a number, enter the number followed by ^(1/3).
No.
Because if you multiply a negative number three times, the product will be negative.
I am pretty sure that the cube root of negative seven is a surd. I checked on the calculator.......and it showed a negative number.....??I think when it is not a surd...it's supposed to say error, so the number probably means that it is a surd..
1
Negative 2 (times) cube root of 54 = -7.55953 Negative 2 (plus) cube root of 54 = 1.77976
Cube root.