Question

opera y reduce
a. 1 + 2x – x3 +4 ( 2 + 3 x2 - x3 ) + 4 x3
b.6 ( 2x – 4) – 5 (x2 + 3x – 5) + 7 (x2 – 6x + 10)
c.– 4x2 ( 5x -3) – 8x ( 3x2 – 1)
d.3 ( 2x – 5) – (x – 2) ( x + 5)

Answer 1

Respuesta:

Explicación paso a paso:

a. 1 + 2x – x3 +4 ( 2 + 3 x2 - x3 ) + 4 x3

1 + 2x – x3 +8 + 12x2 - 4x3  + 4 x3

9+2x-x3+12x2

b.6 ( 2x – 4) – 5 (x2 + 3x – 5) + 7 (x2 – 6x + 10)

12x-24-5x2-15x+25+7x2-42x+70

-45x+71+2x2

c.– 4x2 ( 5x -3) – 8x ( 3x2 – 1)

-4x3-12x2+8x

d.3 ( 2x – 5) – (x – 2) ( x + 5)

6x-15-x2-3x+10

3x-x2-5