Question

Factor completely, then place the factors in the proper location on the grid. 3y4 - 2y2 - 5

Answer 1

Answer:

$(3y^2-5)(y^2+1)$

Step-by-step explanation:

Let's see if we can think of two numbers that multiply to be 3(-5)=-15

andd add up to be -2

How about -5 and 3? That work's! :)

$3y^4-5y^2+3y^2-5$

Factor by grouping!

$y^2(3y^2-5)+1(3y^2-5)\\(3y^2-5)(y^2+1)$