Question

3a(a+1)+(a^2-1) rehite pogalysta​

Answer 1

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Answer 2

To simplify the expression 3a(a+1)+(a^2-1), let's apply the distributive property and combine like terms:

3a(a+1) + (a^2-1)

Using the distributive property, we can expand 3a(a+1) as 3a multiplied by each term inside the parentheses:

= 3aa + 3a1 + (a^2-1)

Simplifying further:

= 3a^2 + 3a + a^2 - 1

Now, let's combine like terms. We have 3a^2 and a^2, which can be added together since they have the same variable (a):

= (3a^2 + a^2) + 3a - 1

= 4a^2 + 3a - 1

So, the simplified form of the expression 3a(a+1)+(a^2-1) is 4a^2 + 3a - 1.