Question

2- Simplifique as expressões:
a) (x + 1)2 + (x + 2)2
c) (2x + + (3x + 1)2
e) (x+1) - (x-2)
g) (m-1 -(m + 1) (m - 1)
b) (x + 5)2 - x (x + 3)
d) (x-4)2-(x - 1)
f) (-x+3) 2 - 2x (4 - x)
h) (x + 4) (x - 4) - (x - 4)​

Answer 1

a) (x + 1)2 + (x + 2)2

1x+2+2x+2

3x+4x

7x

c) (2x + + (3x + 1)2

5x+1+2

8x

b) (x + 5)2 - x (x + 3)

6x+3x

9x

d) (x-4)2-(x - 1)

3x+2-x

4x-x

3x

h) (x + 4) (x - 4) - (x - 4)

4x+3x-3x

7x-3x

4x