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steposvetlana [31]
3 years ago
8

What expression gives the solution to -5+2x^2=-6x

Mathematics
1 answer:
ElenaW [278]3 years ago
7 0

Answer:

Step-by-step explanation:

2x² + 6x - 5 = 0

D = 36 + 40 = 76 = (2√19)²

x_{1} = ( - 6 - 2√19) / 4 = <em>( - 3 - √19) / 2</em>

x_{2} = <em>( - 3 + √19) / 2</em>

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Artyom0805 [142]

Answer:

A. Enlargement, 1.5

Step-by-step explanation:

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To determine the scale factor used, consider the side DE and D'E' of the two triangles:

scale factor = \frac{D'E'}{DE}

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scale factor  = 1.5

Therefore, ΔDEF was enlarged to ΔD'E'F' using a scale factor of 1.5. Then the correct option is A.

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Answer:

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3 years ago
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Step-by-step explanation:

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7 0
4 years ago
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alexandr1967 [171]

Answer:

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Answer:

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