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Beautiful
Mathematics
16 July, 10:43
Is this equal to 0?
6d^2+5d=1
+2
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Christine Mccann
16 July, 10:53
0
d = - 1 and 1/6
6d² + 5d - 1 = 0
6d² + 6d - 1d - 1 = 0
6d (d+1) - 1 (d+1) = 0
(6d - 1) (d+1) = 0
d+1 = 0
d = - 1
and d also is
6d - 1 = 0
6d = 1
d = 1/6
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Brady English
16 July, 10:53
0
6d² + 5d = 1
6 (-1) ² + 5 (-1) = 1
(6 * 1) + (-5) = 1
6 - 5 = 1
1 = 1
So d equals - 1
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