Expand using the identity — task. Maths CBSE Homework Assignments, Class 9.

{(x + 7 y + 49 z)}^{2}

\(=\)

x^{i} + i i^{2} + i z^{2} + i i y + i y i + i x i

[Note: Enter the answer in the order of the identity with its coefficient.]

Did you find an error?

2. Expand using the identity