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Monica [59]
2 years ago
15

Simplify the expression to a polynomial in standard form: (2x - 1)(-x^2+ 4x + 6)

Mathematics
1 answer:
Rom4ik [11]2 years ago
5 0

Answer:

(2x - 1)( -  {x}^{2}  + 4x + 6) \\  = 2x \times  -  {x}^{2}  + 2x \times4x + 2x \times  6  \\  - 1 \times  -  {x}^{2}  - 1 \times 4x - 1 \times 6 \\  =  - 2 {x}^{3}  + 8 {x}^{2}  + 12x  +  {x}^{2}  - 4x - 6 \\  =  - 2 {x}^{3}  + 9 {x}^{2}  - 8x - 6 \\ thank \: you

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Determine which equations have the same solution set as StartFraction 2 Over 3 EndFraction minus x plus StartFraction 1 Over 6 E
Lina20 [59]

Answer:

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Step-by-step explanation:

2/3 - x + 1/6 = 6x

Collect like terms

2/3 + 1/6 = 6x + x

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5/6 = 7x

x = 5/6 ÷ 7

= 5/6 × 1/7

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a) 4 - 6x + 1 = 36x

4 + 1 = 36x + 6x

5 = 42x

x = 5/42

Equivalent to the last step of the simplification above

b) 5/6 - x = 6x

5/6 = 6x + x

5/6 = 7x

This is equivalent to the third step of the simplification

c) 4 - x + 1 = 6x

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d) 5/6 + x = 6x

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