Posted by amanda on Thursday, September 18, 2008 at 7:13pm.
what are two whole numbers whose product is 1224 and whose sum is 70
- math - Don, Thursday, September 18, 2008 at 7:41pm
Unless I am mistaken, the two numbers you are looking for are 36 and 34.
34 x 36 = 1224
34 + 36 = 70
- math - Anonymous, Thursday, September 18, 2008 at 7:47pm
Let x = first number
Let y = second number
x * y = 1224
x + y = 70
Express y in terms of x to eliminate 1 variable:
The second equation can be written as
x + (1224/x) = 70
Multiply both sides by x
x^2 + 1224 = 70x
subtrace 70x from both sides
x^2 - 70x + 1224 = 0
Factor or solve the quadratic.
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