What is expand (x+4+3i)(x+4-3i) ?

The solution to expand (x+4+3i)(x+4-3i) is x^2+8x+25

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expand (x+4+3i)(x+4-3i)

expand

(x + 4 + 3 i) (x + 4 - 3 i)

x^{2} + 8 x + 25

Solution steps

(x + 4 + 3 i) (x + 4 - 3 i)

Distribute parentheses

= xx + x \cdot 4 + x (- 3 i) + 4 x + 4 \cdot 4 + 4 (- 3 i) + 3 i x + 3 i 4 + 3 i (- 3 i)

Simplify

xx + x \cdot 4 + x (- 3 i) + 4 x + 4 \cdot 4 + 4 (- 3 i) + 3 i x + 3 i 4 + 3 i (- 3 i) : x^{2} + 8 x + 25

= x^{2} + 8 x + 25

(8 15 - 2) (3 + 39)

(\frac{x}{2} - \frac{y}{3}) \cdot (\frac{x}{3} + \frac{y}{2})

(n + 1) lo g_{10} (n + 1) - n lo g_{10} (n)

(5 x^{3} + 23)^{2}

(\frac{sin ( x )}{x} - cos (x))^{2}

What is expand (x+4+3i)(x+4-3i) ?
The solution to expand (x+4+3i)(x+4-3i) is x^2+8x+25