SOLUTION: Multiply (2x+6)(5x^2+2x+5) Factor completely 180b^2+ 300bd +125d^2 Factor completely 9x^8 - 45x^7 + 63x^6 Add (5r^4-2r^3+2r^2+12r-7)+(r^5+8r^3+7r^2-2r+5)+(8r^4+r^2-8r-7)

Question 424002: Multiply
(2x+6)(5x^2+2x+5)
Factor completely
180b^2+ 300bd +125d^2
Factor completely
9x^8 - 45x^7 + 63x^6
Add
(5r^4-2r^3+2r^2+12r-7)+(r^5+8r^3+7r^2-2r+5)+(8r^4+r^2-8r-7)
Answer by linht117(37) (Show Source): You can put this solution on YOUR website!
(2x+6)(5x^2+2x+5) multiply each term by (2x+6)
(5x^2)(2x+6) + (2x+6)(2x) + 5(2x+6)
5x^3 + 30x^2 + 4x^2 + 12x + 10x + 30 combine like terms
5x^3 + 34x^2 + 22x + 30
180b^2+ 300bd +125d^2 find LCD- 5
5(36b^2 + 60bd + 25d^2)
9x^8 - 45x^7 + 63x^6 find LCD- 9x^6
(9x^6)(x^2 - 5x + 7)
(5r^4-2r^3+2r^2+12r-7)+(r^5+8r^3+7r^2-2r+5)+(8r^4+r^2-8r-7)
r^(5)+5r^(4)+6r^(3)+9r^(2)+10r-2+(8r^4+r^2-8r-7)
r^(5)+13r^(4)+6r^(3)+10r^(2)+2r-9
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