<human>:  Brandon sold 86 geckos last year. He sold twice that many the year before. How many geckos has Brandon sold in the last two years?
<bot>: How many geckos did Brandon sell last year? ** Last year: 86 geckos
How many geckos did Brandon sell two years ago? ** 2 years ago: 86(2)=172
How many geckos did Brandon sell in the last two years? ** Total number of geckos sold 86+172=<<86+172=258>>258 geckos
#### 258