forum I am in desperate need of someone who passed ninth grade math, or is at least decent at it. Kinda urgent.

Started June 14, 2019 by @croccin-champagne

tune

I'm incredibly confused again, but does anyone know anything about writing a polynomial in descending order?

No no, you're fine. The question just had parentheses around the terms so you had to do foil.

I was never taught foil….

Hmm that's weird.

yeah….. and I got top marks in my class too…. actually most of the class was review for me cause my mom had me doing advanced work (When compared to the public school curriculum) in grade eight, (Homeschooled)

I'm incredibly confused again, but does anyone know anything about writing a polynomial in descending order?

biggest to smallest?

(I believe a polynomial is a group of terms, and contains only multiplication. No addition or subtraction)

(Polynomials can be anything, they can have variables exponents and constants, be added subtracted, multiplied or divided, except the variables you can't divide by the variable. Polynomials are basically just a graph so if you can graph it you can make a polynomial out of it)

I'm incredibly confused again, but does anyone know anything about writing a polynomial in descending order?

Descending order is literally looking only at the exponent. Whatever power the exponent is raised to, you do it biggest to smallest.
So if you have 5x^4 + x - 3x^3, in the first term x is raised to 4. The second term x is raised to 1. Third term x is raised to 3.
Then you do it in order biggest to smallest; so 4, 3, 1. That gives you 5x^4 - 3x^3 + x.

(I believe a polynomial is a group of terms, and contains only multiplication. No addition or subtraction)

(Polynomials can be anything, they can have variables exponents and constants, be added subtracted, multiplied or divided, except the variables you can't divide by the variable. Polynomials are basically just a graph so if you can graph it you can make a polynomial out of it)

Yeah but a polynomial can't contain addition or subtraction.
This: (2y^53xa) is a polynomial
but this: (2y-3xa^7) is not.
(That is as far as I remember, correct… I think…)

I'm incredibly confused again, but does anyone know anything about writing a polynomial in descending order?

Basically you just rewrite the problem so the variable numbers go biggest to smallest with out changing the answer. So if your problem was 6-5x+30x^2 you could re write that as 30x^2 - 5x+6
… I think

(I believe a polynomial is a group of terms, and contains only multiplication. No addition or subtraction)

(Polynomials can be anything, they can have variables exponents and constants, be added subtracted, multiplied or divided, except the variables you can't divide by the variable. Polynomials are basically just a graph so if you can graph it you can make a polynomial out of it)

Yeah but a polynomial can't contain addition or subtraction.
This: (2y^53xa) is a polynomial
but this: (2y-3xa^7) is not.
(That is as far as I remember, correct… I think…)

(Nope, put it into a graphing machine and it graphs…sorta, it's hard to describe but it's still a polynomial )

Yeah but a polynomial can't contain addition or subtraction.
This: (2y^53xa) is a polynomial
but this: (2y-3xa^7) is not.
(That is as far as I remember, correct… I think…)

(Nope, put it into a graphing machine and it graphs)

My math teacher has explaining to do.

Yeah but a polynomial can't contain addition or subtraction.
This: (2y^53xa) is a polynomial
but this: (2y-3xa^7) is not.
(That is as far as I remember, correct… I think…)

(Nope, put it into a graphing machine and it graphs)

My math teacher has explaining to do.

I learned 95% of my math online… I can direct you to some helpful websites though Mathisfun is one of my favorites it explains things very well, for polynomials here's the link https://www.mathsisfun.com/algebra/polynomials.html

Back to the current question writing a polynomial in a descending order is just writing it in standard form, making all of the variables with the highest degree or exponent go first, so if you had 3+4x+5x^4 you would rewrite it 5x^4+4x+3