Question

If P=a? – b2 + 2ab
Q = a? + 4b2 – 6ab
R=b2 + b
S=a? – 4ab
T= -2a² + b2 -ab + a
Find P+Q+R+S-T.​

Answer 1

Answer:

hope it helps you dear

Step-by-step explanation:

5a^2+4b^2-9ab+a+b