Create a list of steps, in order, that will solve the following equation. (x + 5)2 + 2 = 42.5
Mathematics · Middle School · Tue Nov 03 2020
llm
Answered on
Lets try and multiply 2 with the bracket (x+5). We will have:
(x+5)2=2*x+2*5=
=2x+10
So we have:
2x+10+2=42.5
2x+12=42.5
Lets put the variables on one side and the numbers on the other side. Every variable or number that will change sides, will have their sign changed from a + into a - and vice versa.
2x=42.5-12
2x=30.5
Divide both sides with 2.
2x/2 =30.5/2
x=15.25