SOLUTION: I hope someone can help me. I have three problems I need to finish for my homework. I will be very gratedful if some one could help me. 1. Perform the indicated operations: (-x2

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I hope someone can help me. I have three problems I need to finish for my homework. I will be very gratedful if some one could help me. 1. Perform the indicated operations: (-x2      Log On


   

Question 139263: I hope someone can help me. I have three problems I need to finish for my homework. I will be very gratedful if some one could help me.
1. Perform the indicated operations:
(-x2 – 6x + 3) – (-9x2 + x – 1) – (x2 + 5x – 2)
2. Use FOIL to multiply:
(8x – 1)(2x + 5)
3. Multiply:
(x4 – 4x2 – 5)(x2 – x + 2)
I would like to thank you in advance for your help and useing your time to help me.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(-x2–6x+3)–(-9x2+x–1)–(x2+5x–2)
-X^2-6X+3+9X^2-X+1-X^2-5X+2
7X^2-12X+6
USE THE QUADRATIC EQUATION IF YOU NEED TO SOLVE THIS EQUATION:
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
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(8x–1)(2x+5)
16X^2-2X+40X-5
16X^2+38X-5
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x^4–4x^2–5
x^2–x+2
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X^6-4X^4-5X^2-X^5+4X^3+5X+2X^4-8X^2-10
X^6-X^5-2X^4+4X^3-13X^2-10 ANSWER.