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23 October, 13:44
What times what equals 24 and sums to 11
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Alexzander Reilly
23 October, 15:25
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Xy = 24
x + y = 11
x + y = 11
- x - x
y = - x + 11
xy = 24
x (-x + 11) = 24
x (-x) + x (11) = 24
-x² + 11x = 24
- 24 - 24
-x² + 11x - 24 = 0
-1 (x²) - 1 (-11x) - 1 (24) = 0
-1 (x² - 11x + 24) = 0
-1 - 1
x² - 11x + 24 = 0
x² - 8x - 3x + 24 = 0
x (x) - x (8) - 3 (x) + 3 (8) = 0
x (x - 8) - 3 (x - 8) = 0
(x - 3) (x - 8) = 0
x - 3 = 0 or x - 8 = 0
+ 3 + 3 + 8 + 8
x = 3 or x = 8
x + y = 11
3 + y = 11
- 3 - 3
y = 8
(x, y) = (3, 8)
x + y = 11
8 + y = 11
- 8 - 8
y = 3
(x, y) = (8, 3)
The two numbers that add up to 11 and multiply to 24 are 8 and 3.
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Elijah Zavala
23 October, 15:46
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Ok since _x_=24+11 well lets rephrase the equation _x_+11=24 so lets find _ and _ we can find it easily by subtract 24-11=13 but if you multiply 13x1 = 13 add 13+1 = 24 your answer would be 13,1
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