simplify (9n^7-1)2

Solution

simplify

(9 n^{7} - 1) 2

18 n^{7} - 2

Solution steps

(9 n^{7} - 1) \cdot 2

= 2 (9 n^{7} - 1)

Apply the distributive law:

a (b - c) = ab - a c

2 (9 n^{7} - 1) = 2 \cdot 9 n^{7} - 2 \cdot 1

= 2 \cdot 9 n^{7} - 2 \cdot 1

Simplify

2 \cdot 9 n^{7} - 2 \cdot 1 : 18 n^{7} - 2

= 18 n^{7} - 2

(x + 1) (x + 2) (x + 5)

\frac{2 x - 1}{6} + \frac{x + 3}{12}

8^{2} - 3^{2}

\frac{a}{ab - b ^{2}} - \frac{1}{b}

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