Factor the polynomial 3x4 - 2x2 + 15x2 - 10 by grouping
Which product is the factored form of the polynomial?
• (-x2 - 5)(3x2 + 2)
(22-2)(3x2 + 5)
(x2 + 5)(3x2 - 2)
(3x² – 5)(x² + 2)