Find all the zeros of the equation - 4x^4-44x^2+3600=0

-5, 5, 6i, - 6i

Is 100% right.

-4x^4 - 44x^2 + 3600 = 0

Take out the GCF of 4

- x^4 - 11x^2 + 900 = 0

Factor

(-x^2 + 25) (x^2 + 36) = 0

Set each factor equal to zero and solve.

- x^2 + 25 = 0 x^2 + 36 = 0

add x^2 to both sides subtract 36 from both sides

25 = x^2 x^2 = - 36

Take sq rt of both sides Take sq rt of both sides

+ - 5 = x x = + - 6i

Real Zeros Imaginary Zeros