Roots in the question below x^4 +3x^2 -4=0

First, factor the equation.

The equation factors to...

(x+1)(x-1)(x^2+4) = 0

Set each term to 0.

x + 1 = 0

x = -1

x - 1 = 0

x = 1

x^2 + 4 = 0

x^2 = -4

Square root...

x = ±

x = 2i, -2i.

The 4 roots in the equation are -1, 1, 2i, and -2i.

⭐ Answered by Hyperrspace (Ace) ⭐

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trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral