Question

25 a^2-(a+3)^2 срочно плиз!!!27 m^3-(a+3)^2​

Answer 1

Ответ:

вот пожалуйста если не понятно обращайся я рада помочь)))))

Answer 2

Sure, I'll help you with the expressions:

1. 25a^2 - (a + 3)^2

Let's simplify the expression step by step:

Step 1: Expand the square term: (a + 3)^2 = (a + 3)(a + 3) = a^2 + 6a + 9

Step 2: Subtract the expanded term from 25a^2:

25a^2 - (a^2 + 6a + 9)

Step 3: Combine like terms:

25a^2 - a^2 = 24a^2 -6a from -6a = 24a^2 - 6a -9 from -9 = 24a^2 - 6a - 9

So, the simplified expression is: 24a^2 - 6a - 9.

2. 27m^3 - (a + 3)^2

Similarly, let's simplify this expression:

Step 1: Expand the square term: (a + 3)^2 = (a + 3)(a + 3) = a^2 + 6a + 9

Step 2: Subtract the expanded term from 27m^3:

27m^3 - (a^2 + 6a + 9)

Step 3: There are no like terms to combine since we have m^3 and a terms, so the expression remains the same:

27m^3 - (a^2 + 6a + 9).

That's the simplified expression for 27m^3 - (a + 3)^2.