Divide the following polynomial using synthetic division, then place the answer in the proper location on the grid. Write answer in descending powers of x.

(x^4 -81)/(x-3)

Question

Divide the following polynomial using synthetic division, then place the answer in the proper location on the grid. Write answer in descending powers of x.

(x^4 -81)/(x-3)

jhonyy9 · Answer

for x^4 -81  you can using formula of difference of two perfect squares do you know it ?

jhonyy9 · Answer

or you need rewriting the x^4 -81 = x^4 +0x^3 +0x^2 +0x -81 / x - 3 = 

yes ?

jhonyy9 · Answer

@TheSmartOne  what you think please about this ?

jhonyy9 · Answer

ok. ty

thesmartone · Answer

x^4 - 81

Use

a^2 - b^2 = (a+b)(a-b)

x^4 - 81 = (x^2)^2 - (9)^2

jhonyy9 · Answer

using synthetic division - sorry but i not heard about nothing

thesmartone · Answer

http://www.purplemath.com/modules/synthdiv.htm

jhonyy9 · Answer

thank you very much - this i know but not named synth divid.