(x^2+2x+3)+(x^2-5)
Simplify the following: x^2+x^2+2 x-5+3 Grouping like terms, x^2+x^2+2 x-5+3 = (x^2+x^2)+2 x+(3-5): (x^2+x^2)+2 x+(3-5) x^2+x^2 = 2 x^2: 2 x^2+2 x+(3-5) 3-5 = -2: 2 x^2+2 x+-2 Factor 2 out of 2 x^2+2 x-2: Answer: | 2 (x^2+x-1)