SOLUTION: Factor each of the following polynomials 1.2x^2 - 8x 2.-3s^2 + 9s 3.4x + 20x^2 4.5t- 10t^2 5.s^2 + 8s + 12 6. x^2 - 10x + 21 7.x^2 + 5x - 6 8. 4r^2 + 20r + 25 9. 9t^2 - 4

Algebra ->  Finance -> SOLUTION: Factor each of the following polynomials 1.2x^2 - 8x 2.-3s^2 + 9s 3.4x + 20x^2 4.5t- 10t^2 5.s^2 + 8s + 12 6. x^2 - 10x + 21 7.x^2 + 5x - 6 8. 4r^2 + 20r + 25 9. 9t^2 - 4       Log On


   

Question 978600: Factor each of the following polynomials
1.2x^2 - 8x
2.-3s^2 + 9s
3.4x + 20x^2
4.5t- 10t^2
5.s^2 + 8s + 12
6. x^2 - 10x + 21
7.x^2 + 5x - 6
8. 4r^2 + 20r + 25
9. 9t^2 - 4
10. 2x^2 + 3x - 14
I NEED YOUR ANSWERS TUTORS. I WILL WAIT THANK YOU VERY MUCH!!! :D
Found 3 solutions by 428225, Cromlix, ikleyn:
Answer by 428225(90) About Me  (Show Source):
You can put this solution on YOUR website!
I would recommend splitting your question up next time.
.

Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there
1.2x^2 - 8x = 2x(x - 4)
2.-3s^2 + 9s = -3s(s - 3)
3.4x + 20x^2 = 4x(1 + 5x)
4.5t- 10t^2 = 5t(1 - 2t)
5.s^2 + 8s + 12 = (s + 2)(s + 6)
6. x^2 - 10x + 21 = (x - 3)(x - 7)
7.x^2 + 5x - 6 = (x - 1)(x + 6)
8. 4r^2 + 20r + 25 = (2r + 5)(2r + 5)
9. 9t^2 - 4 = (3t - 2)(3t + 2)
10. 2x^2 + 3x - 14 = (2x + 7)(x - 2)
Hope this helps:-)

Answer by ikleyn(52832) About Me  (Show Source):
You can put this solution on YOUR website!

1. 2x%5E2+-+8x = 2x%2A%28x-4%29.

2. -3s%5E2+%2B+9s = -3s%2A%28s-3%29.

3. 4x+%2B+20x%5E2 = 4x%2A%281+%2B+5x%29.

4. 5t-+10t%5E2 = 5t%2A%281-2t%29.

5. s%5E2+%2B+8s+%2B+12 = %28s%2B2%29%2A%28s%2B6%29.

6. +x%5E2+-+10x+%2B+21 = %28x-3%29%2A%28x-7%29.

7. x%5E2+%2B+5x+-+6 = %28x-1%29%2A%28x%2B6%29.

8. 4r%5E2+%2B+20r+%2B+25 = %282r+%2B+5%29%5E2.

9. +9t%5E2+-+4 = %283t+-2%29%2A%283t%2B2%29.

10. 2x%5E2+%2B+3x+-+14 = 2%28x-2%29%2A%28x%2B7%2F2%29.

(For the least example find the roots of the polynomial using the quadratic formula).