What is expand (x^{a+1}-8)(x^{a+1}+9) ?

The solution to expand (x^{a+1}-8)(x^{a+1}+9) is x^{2(a+1)}+x^{a+1}-72

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expand (x^{a+1}-8)(x^{a+1}+9)

expand

(x^{a + 1} - 8) (x^{a + 1} + 9)

x^{2 (a + 1)} + x^{a + 1} - 72

Solution steps

(x^{a + 1} - 8) (x^{a + 1} + 9)

Apply FOIL method

(x^{a + 1} - 8) (x^{a + 1} + 9) : x^{2 (a + 1)} + x^{a + 1} - 72

= x^{2 (a + 1)} + x^{a + 1} - 72

6 x^{2} - 3 + 8 x^{2} - 5 x - 1

(x) (x)

\frac{1}{2} - 8

25 t^{3} - 17 t^{3}

\frac{33}{9}

What is expand (x^{a+1}-8)(x^{a+1}+9) ?
The solution to expand (x^{a+1}-8)(x^{a+1}+9) is x^{2(a+1)}+x^{a+1}-72