Question

14.
If A=x²+x+1, B=x²-x-1, then A+B=
​

Answer 1

Answer:

2x^2

Step-by-step explanation:

A+B

x^2+x+1+x^2-x-1

2x^2

Answer 2

x² + x + 1 + x² - x - 1 A +B = 2x²