Question

(a+4)2(в квадрате) ........

Answer 1

Ответ:

................4а+16

Answer 2

It looks like you want to expand the expression (a + 4)^2. To do this, you can use the distributive property and FOIL method (First, Outer, Inner, Last). Here's how you expand it step by step:

(a + 4)^2 = (a + 4)(a + 4)

Using FOIL: First: a * a = a^2 Outer: a * 4 = 4a Inner: 4 * a = 4a Last: 4 * 4 = 16

Now, combine these terms:

a^2 + 4a + 4a + 16

Combine like terms:

a^2 + 8a + 16

So, (a + 4)^2 expands to a^2 + 8a + 16.