Answer:
R(all real numbers)
-2.5<3.5
Step-by-step explanation:
Barack Obama was the 44th president
X²-13x-30=0
(x-15)(x+2)=0
x = -2 or 15
Answer: 3x^4+7x^3+7x^2+11x+4
Step-by-step explanation:
(x^2+3x+4)(3x^2-2x+1)
3x^4-2x^3+x^2+9x^3-6x^2+3x+12x^2-8x+4
Collect like terms
3x^4-2x^3+9x^3+x^2-6x^2+12x^2+3x+8x+4
3x^4+7x^3+7x^2+11x+4