### Home > CCG > Chapter 1 > Lesson 1.1.1 > Problem1-6

1-6.

Simplify the expressions below as much as possible.

1. $2a+4(7+5a)$

$2a+4(7+5a)$ and $2a+28+20a$

$22a+28$

1. $4(3x+2)-5(7x+5)$

Remember to combine only the like terms.

1. $x(x+5)$

$x^2+5x$

1. $2x+x(x+6)$

Remember that $x^2$-terms and $x$-terms are not alike.