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Vertically and crosswise (trick 4) works in algebra too: the x² term, the x term and the number come straight from the three columns.
✓ You passed this trick’s test.
Urdhva Tiryagbhyam — “vertically and crosswise”
Use it for: Expanding two brackets in Class 7–10 algebra (and checking factorisation). Type x² as x^2 if you like.
Check: Put x = 1: (5)(5) = 25 and 2 + 11 + 12 = 25 ✓
Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
20 sums. Check each answer, then go to the next one. Get 16 or more right to pass.
🏅 Sign in with Google to earn the 🔤 Algebra Ace badge when you pass — and a certificate when you finish all 10 tricks of Part 2 · Advanced tricks. You can still take the test without signing in.
Why does it work? When should you use it? Ask in English, मराठी or हिंदी.
Sign in with Google to ask Free — 20 questions a day.
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