What is expand (x+h+1)*(x+h-1) ?

The solution to expand (x+h+1)*(x+h-1) is x^2+2xh+h^2-1

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expand (x+h+1)*(x+h-1)

expand

(x + h + 1) \cdot (x + h - 1)

x^{2} + 2 x h + h^{2} - 1

Solution steps

(x + h + 1) (x + h - 1)

Distribute parentheses

= xx + x h + x (- 1) + h x + hh + h (- 1) + 1 \cdot x + 1 \cdot h + 1 \cdot (- 1)

Simplify

xx + x h + x (- 1) + h x + hh + h (- 1) + 1 \cdot x + 1 \cdot h + 1 \cdot (- 1) : x^{2} + 2 x h + h^{2} - 1

= x^{2} + 2 x h + h^{2} - 1

5 d (x) + h (x) - f (x)

\frac{( x - 3 )}{( x ^{2} - 2 x + 1 )} + \frac{2}{( x ^{2} - 2 x + 1 )}

(x - 3) (x^{2} - 8 x + 2)

- sin (2 x) sin (x) + cos (2 x) cos (x)

r (36 \cdot 3.14)

What is expand (x+h+1)*(x+h-1) ?
The solution to expand (x+h+1)*(x+h-1) is x^2+2xh+h^2-1