Grammar Girl Quick and Dirty Tips for Better Writing

The origin of X in algebra. Why we say ‘how come’ for ‘why.’ Water handles.

23 Dec 2025

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1144. This week, we look at the origin of the letter X as the variable for the unknown in algebra. Then, we look at the phrase "how come," explaining why it's more informal than "why" and how its grammar subtly differs from other question words.That X segment was written by Peter Schumer, Professor of Mathematics and Natural Philosophy at Middlebury College, and it originally appeared on The Conversation and appears here through a Creative Commons license.Links to Get One Month Free of the Grammar Girl Patreon (different links for different levels)Order of the Snail ($1/month level): https://www.patreon.com/grammargirl/redeem/687E4Order of the Aardvark ($5/month level): https://www.patreon.com/grammargirl/redeem/07205Keeper of the Commas ($10/month level): https://www.patreon.com/grammargirl/redeem/50A0BGuardian of the Grammary ($25/month level): https://www.patreon.com/grammargirl/redeem/949F7🔗 Share your familect recording in Speakpipe or by leaving a voicemail at 833-214-GIRL (833-214-4475)🔗 Watch my LinkedIn Learning writing courses.🔗 Subscribe to the newsletter.🔗 Take our advertising survey. 🔗 Get the edited transcript.🔗 Get Grammar Girl books. 🔗 Join Grammarpalooza. Get ad-free and bonus episodes at Apple Podcasts or Subtext. Learn more about the difference. | HOST: Mignon Fogarty| Grammar Girl is part of the Quick and Dirty Tips podcast network.Audio Engineer: Dan FeierabendDirector of Podcast: Holly HutchingsAdvertising Operations Specialist: Morgan ChristiansonMarketing and Video: Nat Hoopes, Rebekah Sebastian| Theme music by Catherine Rannus.| Grammar Girl Social Media: YouTube. TikTok. Facebook. Threads. Instagram. LinkedIn. Mastodon. Bluesky. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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3ª PARTE | 17 DIC 2025 | EL PARTIDAZO DE COPE

01 Jan 1970

El Partidazo de COPE

13:00H | 21 DIC 2025 | Fin de Semana

01 Jan 1970

Fin de Semana

12:00H | 21 DIC 2025 | Fin de Semana

01 Jan 1970

Fin de Semana

10:00H | 21 DIC 2025 | Fin de Semana

01 Jan 1970

Fin de Semana

13:00H | 20 DIC 2025 | Fin de Semana

01 Jan 1970

Fin de Semana

12:00H | 20 DIC 2025 | Fin de Semana

01 Jan 1970

Fin de Semana

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Grammar Girl Quick and Dirty Tips for Better Writing

The origin of X in algebra. Why we say ‘how come’ for ‘why.’ Water handles.

This episode hasn't been transcribed yet

Other recent transcribed episodes

3ª PARTE | 17 DIC 2025 | EL PARTIDAZO DE COPE

13:00H | 21 DIC 2025 | Fin de Semana

12:00H | 21 DIC 2025 | Fin de Semana

10:00H | 21 DIC 2025 | Fin de Semana

13:00H | 20 DIC 2025 | Fin de Semana

12:00H | 20 DIC 2025 | Fin de Semana

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