Answer:
2x
Step-by-step explanation:
x(x+1) is x squared +x and -x(x-1) is -x squared +x, the x squareds cancel out and x+x is 2x
Answer: 2x
To simplify x(x+1)−x(x−1), first step is to open the bracket = x^2 + x - x^2 + x
Be mindful of the signs, + x^2 - x^2 = 0
=0 + 2x
= 2x
