Esteffyy
10.02.2020 •
Mathematics
Find The length of AD if the length of AB is 14 units the length of BC is 5 units and the length of CD is 8 units
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Ответ:
Ответ:
Try substituting those values, and you will see they do not fit either equation.
looking at the 2nd equation, y = x+2, so
x+2 = x^2+5x-3
x^2 + 4x - 5 = 0
(x+5)(x-1) = 0
x = -5 or 1
so, y = -3 or 3
the solutions are thus (-5,-3)(1,3)
Hope this helps
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