Question

Expand and combine like terms.(9n^7-1)^2=​

Answer 1

Step-by-step explanation:

answer is mentioned above

Answer 2

The expanded and simplified expression is:

$(9n^7 - 1)^2 = 81n^14 - 18n^7 + 1.$

To expand$(9n^7-1)^2,$ we need to use the formula for squaring a binomial:

$(a - b)^2 = a^2 - 2ab + b^2$

In this case, $a = 9n^7$ and b = 1. Substituting these values, we get:

$(9n^7 - 1)^2 = (9n^7)^2 - 2(9n^7)(1) + (1)^2$

Simplifying each term, we get:

$(81n^14 - 18n^7 + 1)$

Therefore, the expanded and simplified expression is:

$(9n^7 - 1)^2 = 81n^14 - 18n^7 + 1.$

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