Question

25(a+b)^2 - 16(a-b) ^2​

Answer 1

Answer:

9a2+82ab+9b2

Step-by-step explanation:

Let's simplify step-by-step.

25(a+b)2−16(a−b)2

Distribute:

=25a2+50ab+25b2+−16a2+32ab+−16b2

Combine Like Terms:

=25a2+50ab+25b2+−16a2+32ab+−16b2

=(25a2+−16a2)+(50ab+32ab)+(25b2+−16b2)

=9a2+82ab+9b2

Answer:

=9a2+82ab+9b2