There are many pairs of numbers that add of to 64. One is (1,63), and the product is 63. Another is (2,62), and the product is 124. There seems to be something missing from the question, perhaps some constraint on the product. Please restate the question.
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Make the two irrational numbers reciprocals of each other. Ex.) 1/pi x pi = 1
It is proven that between two irrational numbers there's an irrational number. There's no method, you just know you can find the number.
18 and 10 18 x 10 = 180 18 + 10 = 28
Find the domain of the relation then draw the graph.
(x2-x-648)=0 We need two numbers that differ by 1 and whose product is 648. The factors of 648 are: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 There are no such numbers, therefor, this quadratic cannot be factored. You may find these links handy: http://www.1728.com/quadratc.htm http://www.apples4theteacher.com/prime-factors.html