3 years ago

If x = -5 x2 + 3 x - 2

Mathematics

1 answer:

MAXImum [283]3 years ago

8 0

Answer:

Step-by-step explanation:

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Stephen has $157.92 in his savings account. He deposited d more dollars into his account after receiving a gift from his grandmo

Sav [38]

Answer:

157.92 + d =t

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3 years ago

3. If 2x +9 32, then x could be 11.5?

kvv77 [185]

2x+9= 32
2x= 32-9
2x= 23
x= 23:2
x= 11.5

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3 years ago

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If α and β are the zeroes of the polynomial 2x2 + 3x – 7, then find a polynomial whose zeroes are and .

Drupady [299]

Answer:

$\frac{-\sqrt{65} - 3 }{4}, \frac{\sqrt{65} + 3}{4}$

Step-by-step explanation:

Since we cannot factor the expression, we must use quadratic formula: $x = \frac{-b +/-\sqrt{b^2 - 4ac} }{2a}$

Plug in a for 2, b for 3, and c for -7 and you should find your roots.

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3 years ago

Solve this quadratic equation by completing the square. x2 + 10x = 26

Misha Larkins [42]

  x² + 10x = 26
  x² + 10x + 25 = 26 + 25
  x² + 5x + 5x + 25 = 51
x(x) + x(5) + 5(x) + 5(5) = 51
x(x + 5) + 5(x + 5) = 51
(x + 5)(x + 5) = 51
(x + 5)² = 51
x + 5 = ±√(51)
- 5 - 5
x = -5 ± √(51)
x = -5 + √(51) or x = -5 - √(51)

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3 years ago

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Answer:it’s a

Step-by-step explanation:

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3 years ago