Question

P(x)=-x²+x-4
Q(x) 2x²-3x+2
Hallar 2P(x) + Q(x)
ayuda
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Answer 1

Respuesta:

de nada

Explicación paso a paso:

x(x−2)

2

−(x

2

−4x+4)⋅2=

Use binomial theorem (a−b)

2

=a

2

−2ab+b

2

 to expand (x−2)

2

.

x(x

2

−4x+4)−(x

2

−4x+4)×2

Use the distributive property to multiply x by x

2

−4x+4.

x

3

−4x

2

+4x−(x

2

−4x+4)×2

Use the distributive property to multiply x

2

−4x+4 by 2.

x

3

−4x

2

+4x−(2x

2

−8x+8)

To find the opposite of 2x

2

−8x+8, find the opposite of each term.

x

3

−4x

2

+4x−2x

2

+8x−8

Combine −4x

2

 and −2x

2

 to get −6x

2

.

x

3

−6x

2

+4x+8x−8