Natalie J. answered • 05/13/20
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UCLA Math Grad, 800 SAT Math, 3 SOA Exams Passed
Call the first number x. Then, the second number is 2x. If you take the product of those, then you get x*2x = 2x2 = 128 as given in the problem. Then solve: divide both sides by 2, and get x2 = 64. So, x = 8. Then, 2x = 16. So the answers are 8 and 16.
Natalie J.
Sure. take the square root of both sides of x^2 = 64 to get x = 8. 2 times 8 is then 16.
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05/13/20
Nandini P.
Could I please know how did you get 8? Because I worked the problem till x^2= 64. I don’t get how you got 8 and then 2x =1605/13/20