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 Βιβλία Βιβλία 81 - 90 από 173 για That is, the square of the sum of two numbers is equal to the square of the first.... That is, the square of the sum of two numbers is equal to the square of the first number, plus twice the product of the two numbers, plus the square of the second number. Higher Arithmetic: Designed for the Use of High Schools, Academies, and ... - Σελίδα 309
των George Roberts Perkins - 1851 - 342 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## Secondary Algebra

George Egbert Fisher, Isaac Joachim Schwatt - 1900 - 442 σελίδες
...(a - 6)2= (a - b)(a - 6) = a2- a6 - ba + 62 = a2 -2 ab + 62. 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. 4. Observe that this... William James Milne - 1901 - 444 σελίδες
...the sum of two numbers obtained from the numbers ? 3. What signs have the terms ? 91. PRINCIPLE. — The square of the sum of two numbers is equal to the...first number, plus twice the product of the first and second, plus the square of the second. Since 5 a? x 5 a3 = 25 a«, 3 a465 x 3 a4o5 = 9 a86w, etc.,... ## Ferrell's Advanced Arithmetic, Βιβλίο 2

John Appley Ferrell - 1901 - 408 σελίδες
...52+2xlO+22 = 25+20 + 4 = 49, result. These examples are illustrative of the following principle : PRINCIPLE: The square of the sum of two numbers is equal to the square of the first plus twice the product of the first times the second plus the square of the second. By referring to... ## Book three (1901)

Isaac Oscar Winslow - 1901
...represent any numbers, We see from the multiplication that the square of the sum of two numbers is always equal to the square of the first number, plus twice the product of the first and the second, plus the square of the second ; or the square of the first, plus the second, times... William James Milne - 1901 - 444 σελίδες
...square of (a — &) differ from the square of (а+&)? 93. PRINCIPLE. — The 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. EXAMPLES Expand by... ## Complete Secondary Algebra

George Egbert Fisher - 1901
...= 4 я? + 20 xy + 25 y\ 3. By actual multiplication, we have 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. 4. Observe that this... ## The Natural Arithmetic: Book 1-, Τόμος 3

Isaac Oscar Winslow - 1901
...see from the multiplication that the square of 2 ~ the sum of two numbers is always equal to the 2 square of the first number, plus twice the product of the first and the second, plus the square of the a? + 2 db + V second ; or the square of the first, plus the... ## Higher Algebra

George Egbert Fisher, Isaac Joachim Schwatt - 1901 - 615 σελίδες
...multiplication, we have (a - e)1 = (a - 6) (a - 6)= as - 2a6 + b\ 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. Eg, (3 x - 7 y)*... ## The Natural Arithmetic: Book 1-, Τόμος 3

Isaac Oscar Winslow - 1901
...numbers, we a _|_ j see from the multiplication that the square of ~ 7 the sum of two numbers is always equal to the ' square of the first number, plus twice the product 1 of the first and the second, plus the square of the a2 + 2 ab + 62 second ; or the square of the... ## College Algebra

James Harrington Boyd - 1901 - 777 σελίδες
...The first example gives the value of (a -\- b) (a -f- b), that is, of (af b)"; we thus find Hence, the square of the sum of two numbers is equal to the sum of the squares of the two numbers plus twice the product of the ßrst_ times the second. Again...