Question

factor.. 10y2 + 41y + 40

Answer 1

Do you know the method you're supposed to use?

Answer 2

I have no idea...

Answer 3

You could always plug it into the quadratic formula.
Otherwise, this can be factored by expanding and grouping.

Answer 4

So to find numbers which would create terms you can group, you multiply the coefficient of y^2--10--by the constant--40.

You find sets of numbers which multiply to 10 x 40 =400
and add to the coefficient of y, 41.

Those two numbers become your new "y" terms, and then you can group.

https://www.khanacademy.org/math/algebra/multiplying-factoring-expression/factoring-by-grouping/v/factor-by-grouping-and-factoring-completely

Answer 5

http://www.wolframalpha.com/input/?i=factor+10+y^2+%2B+41+y+%2B+40