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vitfil [10]
3 years ago
13

Brayden is simplifying the expression 4n – (n – 3)2. He begins by distributing the negative to the terms inside the parentheses.

What should he have done instead? combine like terms square the binomial cube the binomial rewrite the expression as a fraction
Mathematics
2 answers:
RoseWind [281]3 years ago
7 0
The right approach would be:
4n - (2n - 6)
4n - 2n + 6
2n+6

The options confused me. So pick the answer based on the solution.
eduard3 years ago
3 0

Answer:

-n^2 + 10n - 9

Step-by-step explanation:

We are given the following:

Brayden wants to simplify the given expression.

4n-(n-3)^2

He begins by distributing the negative to the terms inside the parentheses. This is a wrong approach to simplify the expression.

He should have first square the term, then distribute the negative sign and then combine the like terms.

Simplification of the given expression:

4n-(n-3)^2\\4n-(n^2 + 9 -6n)\\4n-n^2-9+6n\\-n^2 + 10n - 9

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