Question

what are the real number solutions of the equation x^4+2x^3-4x^2=0?

Answer 1

Factor out x^2

Answer 2

x^2(x^2+2x-4)

Answer 3

Now set each factor equal to 0 and solve.

Answer 4

how would you factor x^2+2x-4

Answer 5

It won't factor. Use the quadratic formula.

Answer 6

" well are you going to draw your weapons, or are you going to whistle Trixie ? "

Answer 7

The sign of the discriminant determines the number of solutions

if positive : 2 real solutions

if zero : 1 real solutions

Answer 8

@Luis_Rivera How does that tell what the solutions are?

Answer 9

it doesnt !