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Factorization x (y + 2) - x-y-1
x(y＋2)－x－y－1＝(x-1)(y+1)
Factorization: x ^ 2 (y ^ 2-1) + (1-y ^ 2)
^2 is quadratic
Original formula = x ^ 2 (y ^ 2-1) - (y ^ 2-1)
=(y^2-1)(x^2-1)
=(y+1)(y-1)(x+1)(x-1)
-99 plus 100 minus 97 plus 98 minus 95 plus 96. What's one minus two
50
RELATED INFORMATIONS
- 1. Simple calculation 25 × 99.9
- 2. A leaky faucet wastes 1 / 25 tons of water a day. According to this calculation, how many tons of water does a leaky faucet waste in a month (calculated by 30 days)?
- 3. The faucet of Xiaoxiao's house is broken and often leaks. Xiaoxiao uses a 3-liter bucket to collect water. After 1 hour and 30 minutes, it is full 1. How many liters of water is leaking from the faucet every minute? 2. How many liters of water will be wasted if the faucet is not repaired in time for one month (calculated by 30 days)? 3. If the water charge per cubic meter is 2.8 yuan, how many yuan of water is wasted in one month? How many days can a person drink the wasted water in one month? (calculated by drinking 1400ml per person per day It's 1400ml
- 4. We should form the habit of saving water since childhood. If a faucet drips 4 drops per second, the average 20 drops is one milliliter It leaks day and night a.18.28kg b.8.64kg c.4.32kg d.17.28kg Why?
- 5. A dripping tap needs to drain 12 kg of water every day. According to this calculation, the tap needs to drain () kg of water every 365 days
- 6. A dripping faucet wastes 60 liters of water a day. If your home uses 6000 liters of water a month, According to this dripping faucet, how many months can you waste 365 days a year?
- 7. We took the bucket for half an hour and received 1.8kg of water. Do you know how much water a dripping faucet wastes per minute?
- 8. An untightened faucet drips 1.8kg water in half an hour. How many kg water does the untightened faucet drip in one minute? (solution to equation)
- 9. If a faucet is not tightened, it will waste about 50 ml of water per minute. (1) how many liters of water is wasted in a day? How much water is wasted in a year?
- 10. How much water does a running faucet waste in an hour
- 11. Factorization: X (Y-1) + y (1-y) =?
- 12. Simple calculation of 7 / 12 × 3 / 4 + 15 / 48
- 13. 48 * (7 / 12 + 3 / 12) △ 2 / 3
- 14. Simple operation 37.2 × 48 + 372 × 5.1 + 37.2
- 15. 300 × 200-10 π & # 178; =? (calculation retention π)
- 16. Try to explain (a + 3) &# 178; ≠ A & # 178; + 3 & # 178; (a ≠ 0) in a direct way
- 17. The factorization shows that 8 times of 64 minus 9 times of 32 minus 22 times can be divided by 26 If a polynomial is divided by (X-Y) and the result is 4-x & sup2;, then the polynomial can be decomposed into a factor（
- 18. All by factorization 3x [X-1] = 2 [1-x] [x + 1] ^ 2-25 = 0 16 [X-2] ^ 2 = 9 [x + 3] ^ 2
- 19. Factorization: 9999 * 2-1111 times 27 divided by 102 times 98 cry for help
- 20. Under what circumstances is one plus one equal to 99?