Solve this problem using the FOIL method; first, outside, inside, last.
Multiply the first numbers (x * x)
Multiply the outside numbers (x * 6)
Multiply the inside numbers (2 * x)
Multiply the last numbers (2 * 6)
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(x + 2)(x + 6)
x² + 6x + 2x + 12
Combine like terms.
![\boxed {x^2 + 8x + 12}](https://img.qammunity.org/2019/formulas/mathematics/middle-school/mv8zoj97oepwt610gsnol7toliu26ysene.png)