Question

quero saber se A=x²+1 e B= 2x²+x+2, determine B-A

Answer 1

A = x² + 1  e  B = 2x² + x + 2   determine B-A

2x² + x + 2 - (x² + 1)
2x² + x + 2 - x² - 1
2x² - x² + x + 2 - 1
x² + x + 1

Answer 2

b- a
b= 2x² +x+2 
a= x²+1
2x²+x+2-x²+1
2x²-x²+x+2+1
x²+x+3