What is expand (a-1+x)left(a+1-x) ?

The solution to expand (a-1+x)left(a+1-x) is ela^2ft+2elxft-elx^2ft-elft

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expand (a-1+x)left(a+1-x)

expand

(a - 1 + x) l e f t (a + 1 - x)

e l a^{2} f t + 2 e l x f t - e l x^{2} f t - e l f t

Solution steps

(a - 1 + x) l e f t (a + 1 - x)

= e l f t (a - 1 + x) (a + 1 - x)

Expand

(a - 1 + x) (a + 1 - x) : a^{2} + 2 x - x^{2} - 1

= l e f t (a^{2} + 2 x - x^{2} - 1)

Expand

l e f t (a^{2} + 2 x - x^{2} - 1) : e l a^{2} f t + 2 e l x f t - e l x^{2} f t - e l f t

= e l a^{2} f t + 2 e l x f t - e l x^{2} f t - e l f t

\frac{( 9 - 4 t ) ( 12 + 9 t )}{2}

(3 + 7) (8 + 2)

g (t) (g (t) = - t)

\frac{x + 4}{( x + 2 ) ( x ^{2} + 3 x + 1 )}

(4 - 4 sin (θ))^{2}

What is expand (a-1+x)left(a+1-x) ?
The solution to expand (a-1+x)left(a+1-x) is ela^2ft+2elxft-elx^2ft-elft