Question

is it correct guys????​

Answer 1

Answer:

some writing mistakes are there but final answer is right.

Step-by-step explanation:

1. In second step middle plus sign is not written.

2. In third step at third term instead of 88ab you wrote 88b.

Answer 2

Question - (5a+11b)(8a+9b)

Solution -

=(5a+11b)(8a+9b)

=5a(8a+9b)+11b(8a+9b)

=40a²+45ab+88ab+99b²

=40a²+133ab+99b²

Your answer is correct but some signs are missing

1) In second step you have not put + sign in front of 11b

2)In the third step you have wrote 88b instead of 88ab