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Black_prince [1.1K]
2 years ago
11

Question 5 (1 point)

Mathematics
2 answers:
Ivanshal [37]2 years ago
6 0

a.

\huge{{x}^{2}  + 6x + 9}

<em><u>Step-by-step explanation:</u></em>

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...

fredd [130]2 years ago
4 0

Answer:

a)   x² + 6x + 9

Step-by-step 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

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