Question

Раскрой скобки (a+3)v2=(a+3)(a+3)=

Answer 1

Ответ:

${a}^{2} + 3a + 3a + 9 = {a}^{2} + 6a + 9$

Answer 2

To expand the expression (a + 3)(a + 3), you can use the FOIL method, which stands for First, Outer, Inner, Last. The FOIL method is a way to multiply two binomials.

(a + 3)(a + 3) = a * a + a * 3 + 3 * a + 3 * 3

Now, simplify the terms:

(a + 3)(a + 3) = a^2 + 3a + 3a + 9

Combine like terms:

(a + 3)(a + 3) = a^2 + 6a + 9

So, (a + 3)(a + 3) = a^2 + 6a + 9.