Study guides

☆☆

Q: How do you factorise x3 plus 2x2-8x plus 5 equals 0?

Write your answer...

Submit

Still have questions?

Related questions

x3+xy-x2y2=x(x2+y-xy2)

X3 + 8= (x+2)(x2-2x+4)

IMPOSSIBLE

-24

No.

X(X2 - X)

It is x = -5

No, it is not.

y2=x3+3x2

(xn+2-1)/(x2-1)

If: x3+1 = 65 Then: x3 = 65-1 And: x3 = 64 So: x = 4 by means of the cube root function on the calculator

Realising that 125 is a perfect cube, this is actually pretty easy: x3 + 125 = 0 x3 = -125 x = -5

2x3 - 7 + 5x - x3 + 3x - x3 = 8x - 7

1

One equation with two unknowns usually does not have a solution.

It has two complex roots.

(a) y = -3x + 1

Yes.

Anything plus 0 is itself, so x3 + 0 is x3.

3 + 2 + 25*3 - 6 = 3 + 2 + 75 - 6 = 74

1.74367

It is a many to one function (APEX)

5x is a common factor of all terms:- 5x(x3+4x2+9)

x3 + x2 + 4x + 4 = (x2 + 4)(x + 1)

x3 + 4x2 + 6x + 24 = (x2 + 6)(x + 4)