Question

(x+1)(x+3) please answer

Answer 1

Answer:

Given:

$(x+1)(x+3)$

Solution:

Using the identity:

$\boxed{\boxed{(x+a)(x+b)=x^2+(a+b)x+ab}}$

$\therefore x^2 + (3+1)x + (3 \times 1)$

$\implies x^2 +4x +3$

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Answer 2

Answer:

Step-by-step explanation: (x+1)(x+3)

x+1 into x+3

2x+4