Question

Write as algebraic sum
(a+b)(2b-a)=

Answer 1

Answer
−a
2
+
2
b
2
+
a
b

Here is the answer

Answer 2

Apply the distributive property.

=a(a−2b)+b(a−2b)

=a2−2ab+ba−2b2

=a2−ab−2b2.