Question

Question 5 (1 point)

(07.07)
Find the product of (x + 3). (1 point)
o a
x2 + 6x + 9
x2 - 6x + 9
Ос
x2-9
d
x2 + 9

Answer 1

a.

`\huge{{x}^(2) + 6x + 9}`

Explanation:

Using Binomial Theorem:

`\boxed{{(a+b)} ^n= \sum_(k=0)^(n)\binom{n}{k} a^(n-k)b^(k)}`

.

.

.

`(a+b) ^2 =a^(2) + 2ab +b^(2)`

The answer seems to be
`x^(2) + 6x + 9`...

Answer 2

a) x² + 6x + 9

Explanation:

When we square something, we multiply it by itself:

⇒ (x + 3)² = (x + 3)(x + 3)

Using the FOIL method: (a + b)(c + d) = ac + ad + bc + bd

⇒ (x + 3)(x + 3) = x² + 3x + 3x + 9

= x² + 6x + 9