How do you simplify 2( 4x - 5) + 5( - 2x + 3) as a binomial?

1 Answer
Nov 30, 2017

5-2x or 5(1-(2x)/5)^1

Explanation:

2(4x-5)+5(-2x+3) = 8x-10-10x+15

=-2x+5 =5-2x

If you want to get this in the other binomial form of a(1+bx)^n we must divide both sides by 5:
5(1-(2x)/5)^1

This can be proved as (a+bx)^n=a^n(1+(bx)/a)^n

For n=1 we get:
a^n(1+(bx)/a)^1=a^1(1+(bx)/a)=a(1+1((bx)/a))=a(1+(bx)/a)