Question

(a+2)²= ??? ПОМОГИТ5 ПЛИИЗ

Answer 1

Объяснение:

${( a + 2 )}^{2} = {a}^{2} + 4a + 4$

По формуле (a+b)²=a²+2ab+b²

Answer 2

(a + 2)² is equal to (a + 2) * (a + 2), which can be expanded using the distributive property.

(a + 2) * (a + 2) = a * (a + 2) + 2 * (a + 2)

Using the distributive property again:

= a * a + a * 2 + 2 * a + 2 * 2

= a² + 2a + 2a + 4

Combining like terms:

= a² + 4a + 4

Therefore, (a + 2)² simplifies to a² + 4a + 4.

Answer 3

(a + 2)² can be expanded using the formula for squaring a binomial. According to the formula:

(a + b)² = a² + 2ab + b²

In this case, b is 2. So we have:

(a + 2)² = a² + 2(a)(2) + 2² = a² + 4a + 4

Therefore, (a + 2)² is equal to a² + 4a + 4.