Question

if p=a2-b2+2ab, Q=a2+4b2-6ab,R=b2+6, 5=a2-4ab and T= -2a2+b2-ab. Find P+Q+R+S+-T.​

Answer 1

Answer:

a²+5b²-9ab

Step-by-step explanation:

a²-²+2ab+a²+4b²-6ab+b²+6+a²-4ab+(-2a²)+b²-ab

Now,we will collect same variable terms and solve our problem

a²+a²+a²-2a²-b²+4b²+b²+b²+2ab-6ab-4ab-ab

3a²-2a²+6b²-b²-11ab+2ab

a²+5b²-9ab

Hence Proved