Question

1/8-8x - 1/8+8x + x/4+x^3 - x/2+2x^4​

Answer 1

Answer:

1. Simplify: (4x2 - 2x) - (-5x2 - 8x).

Solution:

(4x2 - 2x) - (-5x2 - 8x)

= 4x2 - 2x + 5x2 + 8x.

= 4x2 + 5x2 - 2x + 8x.

= 9x2 + 6x.

= 3x(3x + 2).

Answer: 3x(3x + 2)

Step-by-step explanation:

itz Mr.Pagal

Answer 2

Answer:

Let f(x)=x

4 −8x 3 +18x 2 −8x+2

Substituting x=2+ 3

, we get

f(2+ 3 )=(2+ 3 ) 4 −8(2+ 3 ) 3 +18(2+ 3 ) 2 −8(2+ 3 )+2

=(2+ 3 ) 2

((2+3 ) 2 +18)−8(2+3 )((2+3 ) 2 +1)+2

=(7+4 3 )(43 +25)−8(2+ 3 )(8+4 3 )+2

=175+48−128−96+2

=1