extremley hard... can you do this math?

[yo_worst_dream]

1. (4x2 + x + 3) + (5x2 + 9x – 2) (1 point)
20x2 + 9x + 1
9x2 + 10x +1
20x4 + 9x2 – 6
9x2 + 36x – 8

2. (7b2 – 5b + 3) – (b2 + 8b – 6) (1 point)
7b2 – 40b – 18
6b2 – 13b + 9
8b2 + 3b – 3
7b2 + 40b +18

3. 3w(12w – 1) – 8w (1 point)
15w2 – 24w
36w2 – 40w
28w – 1
36w2 – 11w

4. 6k(4k + k2) + 9k(2k – 6k2) (1 point)
110k2 + 15k – 5
-48k3 + 21k2
-48k3 + 42k2
28k2 + 24k

5. (x + 3)(x – 5) (1 point)
2x – 2
x2 – 15
x2 – 2x – 15
x2 – 8x – 2
6. (2n3 – 5)(6n2 + n) (1 point)
12n5 + 2n4 – 30n2 – 5n
12n5 – 5n
8n6 – 11n2 – 5n
8n5 + 2n3 – 30n2 + n

7. (g2 + 4)(4g2 + 8g – 9) (1 point)
4g4 +8g3 – 36
5g2 + 8g – 5
4g4 + 8g3 + 7g2 + 32g – 36
4g2 + 16g2 + 8g3 + 32g – 36
Factor each polynomial.

8. 12y2 – 10 (1 point)
2(6y2 – 5)
60y2(5 – 6y2)
5(2y – 2)
12y2(1 – 2y)

9. 5t6 + 25t3 – 10t (1 point)
5t6(1 + 5t3 – 2t5)
10t(2t5 + 15t2 – 1)
50t6(10 + 2t3 – 5t5)
5t(t5 + 5t2 – 2)

The numbers after the letters are exponets