Solve 4x^4 + 7x^2 - 2 = 0.
choose the factored form of the polynomial
expression.
(2x^2 - 1)(2x^2 + 2)
(4x^2 - 1)(x^2 - 2)
(4x^2 + 1)(x^2 - 2)
(4x^2 - 1)(x^2 + 2)

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8

What are the solutions of the equation x4 – 5x2 – 14 = 0? use factoring to solve. someone !