Answer:
Step-by-step explanation:
Use Foil
f: x * x = x^2
o: x * 1 = x
i: x * 1 = x
l: 1 * 1
x^2 + x + x + 1
x^2 + 2x + 1
When given the following trinomial,
Distribute, multiply every term in one of the parenthesis by every term in the other,
Simplify,
Combine like terms
AnswerR
13
x=2 : )
4(3x-1)=20
12x-4=20
12x=24
x=2