Question

ALGEBRA HELP PLEASE

Simplify the product & Write in standard form.

20. -2n^2 (5n - 9 + 4n^2) =

Answer 1

@Michele_Laino

Answer 2

What grade are you in?

Answer 3

i cant do the standard form part but i can simplify/expand it?

Answer 4

Okay

Answer 5

we use the FOIL method, and multiply it with each number, so
-2n^2 x 5n = -10n^3
-2n^2 x -9 = 18n^2
-2n^2 x 4n^2 = -8n^4
put them all together, you get
-10n^3+18n^2-8n^4

Answer 6

Whats foil stand for?

Answer 7

first, outer, inner, last

Answer 8

@09chunga Thanks :)

Answer 9

no prob ^^