Question

C=-a2_2a+5eD=b2+2b+5

Answer 1

Resposta:

A= -(2)^2-2.2+5

A= -4-4+5

A= -3

B=-2^2+2.-2+5

B= 4-4+5

B=5

A+B= -3+5

A+B= 2

B)A= -3

B)2^2+2.2+5

4+4+5

13

A-B= -3-13= -16