When written in standard form, which polynomial has a leading coefficient of 5? choose all that apply. a 3 + 6y + 5y2 b x + 3 c x2 - 3x3 + 2x d 5y + 3y2 - 4

Choice A

The polynomial for choice A can be written as 5y^2+6y+3. The leading term is 5y^2. The coefficient for this term is 5, so the leading coefficient is 5

So Choice A is one of the answers. It turns out that choice A is the only answer (see below)



Choice B

The leading coefficient for x+3 is 1
This is because x+3 is the same as 1x+3
We can rule out choice B since the leading coefficient is not 5



Choice C

Rearrange the terms in x^2-3x^3+2x to get -3x^3+x^2+2x
The leading coefficient is -3
We can rule out choice C



Choice D

The leading coefficient here is 3 because the standard form is 3y^2+5y-4
We can rule out choice D



Summary: The only answer is choice A