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Alina [70]
2 years ago
11

Expand the following expression: (2x-1)(x+4)

Mathematics
1 answer:
sesenic [268]2 years ago
8 0

Answer:

2x² +7x - 4

Step-by-step explanation:

(2x-1)(x+4)

2x² + 8x - x - 4

simplify:

2x² +7x - 4

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Solve this quadratic equation using the quadratic formula. 5 - 10x - 3x2 = 0
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Answer:

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Step-by-step explanation:

5 − 10x − 3x² = 0

Write in standard form:

-3x² − 10x + 5 = 0

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x = (10 ± 4√10) / -6

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7 0
3 years ago
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