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3 years ago

Is this equal to 0? 6d^2+5d=1

Mathematics

2 answers:

Artist 52 [7]3 years ago

6 0

6d² + 5d = 1

6(-1)² + 5(-1) = 1

(6 × 1) + (-5) = 1

6 - 5 = 1

1 = 1

So d equals -1

jonny [76]3 years ago

6 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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The attached graph

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