 That is, the square of the difference of two numbers is equal to the square of the first number, minus twice the product of the two numbers, plus the square of the second number.  First Course in Algebra - Σελίδα 98των Walter Burton Ford, Charles Ammerman - 1919 - 334 σελίδεςΠλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | William James Milne - 1911 - 332 σελίδες
...term ? 3. What signs have the terms of the result? 88. PRINCIPLE. — Tiie square of the difference of two numbers is equal to the square of the first number, minus twice the product of the first and second, plus the square of the second. EXERCISES 89. Expand by inspection, and test each... | |
 | John William Hopkins, Patrick Healy Underwood - 1912 - 362 σελίδες
...the difference of a(a — «a — ab - ab + V* and 6(a — 6). Hence, The square of the difference of two numbers is equal to the square of the first number minus twice the product of the first number and the second number plus the square of the second number. (' I) Geometric Proof. Let... | |
 | Fletcher Durell - 1912 - 300 σελίδες
...of five consecutive numbers. Of seven consecutive numbers. 36. Prove that the product of the sum and difference of any two numbers is equal to the square of the first, minus the square of the second. Illustrate by a numerical example. SUQ. Denote the two numbers by a... | |
 | Herbert Ellsworth Slaught, Nels Johann Lennes - 1912 - 508 σελίδες
...type exhibited in the figures, page 68. Translated into words this identity is : The square of the sum of any two numbers is equal to the square of the first plus twice the product of the two numbers plus the square of the second. By formula I we may square... | |
 | George Henry Van Tuyl - 1913 - 296 σελίδες
...55 x 75 20. 85 x 45 27. 115 X115 7. 75 x 75 14. 85 x 35 21. 65 x 75 28. 115 X 55 and difference of two numbers is equal to the square of the first number minus the square of the second number." The square of 21 is 441, and the square of 2 is 4. Hence the result... | |
 | Fletcher Durell - 1914 - 404 σελίδες
...of five consecutive numbers. Of seven consecutive numbers. 36. Prove that the product of the sum and difference of any two numbers is equal to the square of the first, minus the square of the second. Illustrate by a numerical example. SUG. Denote the tvvp numbers by... | |
 | Fletcher Durell - 1914 - 606 σελίδες
...of five consecutive numbers. Of seven consecutive numbers. 36. Prove that the product of the sum and difference of any two numbers is equal to the square of the first, minus the square of the second. Illustrate by a numerical example. SUQ. Denote the two numbers by a... | |
 | William James Milne - 1914 - 514 σελίδες
...192 = (20 - I)2 = 202 - 2 x 20 x 1 + 12 = 361. 108. PRINCIPLE. — The square of the difference of two numbers is equal to the square of the first number, minus tivice the product of the first and second, plus the square of the second. EXERCISES [Additional exercises... | |
 | George William Evans, John A. Marsh - 1916 - 264 σελίδες
...the square of the first number, plus twice the product of the two, plus the square of the second. 2. The square of the difference of any two numbers is...product of the two, plus the square of the second. EXERCISE 45 By means of these theorems write the following products at sight, without performing the... | |
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