### Home > INT2 > Chapter 1 > Lesson 1.2.3 > Problem1-55

1-55.

Simplify the following expression by combining like terms:
$5x^2+6x−3+4x^2−8x+2$.

1. A term is a single number, variable, or product of numbers and variables. How many terms are in the original expression? How many are in the simplified expression?

$5b-2+3b+4$

group like terms: $(5b+3b)+(-2+4)$

simplify: $8b+2$

2. When variable(s) are multiplied by a number, the number is called a coefficient. What is the coefficient of $x$ in your simplified expression?