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anonymous
 one year ago
Add the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending powers of x.
Find the sum of (5x^3 + 3x^2  5x + 4) and (8x^3 5x^2 + 8x + 9).
anonymous
 one year ago
Add the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending powers of x. Find the sum of (5x^3 + 3x^2  5x + 4) and (8x^3 5x^2 + 8x + 9).

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Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1sum = add so just add both functions \[\large\rm 5x^3 + 3x^2  5x + 4 +8x^3 5x^2 + 8x + 9\] we are adding so we can remove parentheses now combine like terms

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1do you know what are like terms ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So the bottom numbers right not the exponents?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1ohh if the variables and exponent are the same then you can add their coefficient (just add/subtract coefficient )

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1here is an example 4x^2+ 5x^2 (variables and exponent are the same so we can combine them) (4+5)x^2 =9x^2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes I got it. Thank you for your help

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1\[\large\rm \color{reD}{5x^3 }+ 3x^2  5x + 4 +\color{ReD}{8x^3} 5x^2 + 8x + 9\] like terms so you can combine their coefficients (5+8)x^3

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1okay alright descending means write from highest degree to lowest x^3,x^2,x :=)
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