Solve 4x4 + 7x2 -2 = 0.
Choose the factored form of the polynomial
expression.
(2x2 - 1)(2x + 2)
(4x2 - 1)(x - 2)
(4x2 + 1)(x2 - 2)
(4x2 - 1)(x2 + 2)

Ammonia molecules have three hydrogen atoms and one nitrogen atom. how many of each atom arein five molecules of ammonia

What is x and y intercepts for y=x+7

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)