You search for something using Google and you also want to see results from WolframAlpha. You usually do this by opening two webpages. If you’re a Firefox user, there’s an add-on that will display WolframAlpha result when you search using Google. It’s called Wolfram Alpha Google created by Sekizaru.
According to the Firefox add-ons page, Wolfram Alpha Google will display WolframAlpha results in Google searches. There’s no need to switch between the two sites since you can do both searches at once. It’s like hitting two birds with one stone.
You may download the add-on from the Firefox add-ons page. By the way, it’s an experimental add-on. It hasn’t been tested by Mozilla’s editorial team and it may be alpha, beta or pre-production in quality, performance and features. Here’s a sample search result after I installed the add-on: