MATEMÁTICAS

1.

a) 4 · 2x + 10 = 2x - 4 b) 2x · 3 + 5x = x - 1 - 2x

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c) 3x - 3 _ 3x = 13 _ 2x + 4

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2. a) (6x2 + 10x + 9) + (12x4 +6x3 + 5x2 - 2x + 7) =

b) (12x4 +6x3 + 5x2 - 2x + 7) - (5x3 + x2 - x - 5) =

3. a) (3x3 + 4x2 - 2x - 6) · (x + 3) =

4. a) 16x2 + 32x +16 =

b) 9x2 - 12x + 4 =

c) 4a2 - 4b2 =

5.

- a2 + ab + a =

b2 + ab + a

6.

a) x2 + 5x + 6 = 0

b) 3x2 - 9x + 6 = 0

7.

a) 5x2 = 80 b) 36 - x2 = 0 c) 2x2 - 6x = 0

8. a) (3x - 1)2 = 0

b) x2 - 1 = x2 - 2x + 1

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