expand (x+1)(x+2) — step-by-step solution

Let's write in expanded form:

(x + 1) \cdot (x + 2)

x \cdot x

+ x \cdot 2

+ 1 \cdot x

+ 1 \cdot 2

ℹ

x \cdot x

x^{2}

‖

1 \cdot x

x

‖

1 \cdot 2

2

x^{2}

+ x \cdot 2

+ x

+ 2

▷Answer: $x^{2} + 3 x + 2$