因式分解 4^x-6(2^x)+8

解答

因式分解

4^{x} - 6 (2^{x}) + 8

4^{x} - 3 \cdot 2^{1 + x} + 8

求解步骤

4^{x} - 6 (2^{x}) + 8

去除括号:

(a) = a

= 4^{x} - 6 \cdot 2^{x} + 8

6 \cdot 2^{x} = 3 \cdot 2^{1 + x}

= 4^{x} - 3 \cdot 2^{x + 1} + 8

f a c t or (2 x^{2}) + (x + 4)

f a c t or u + a u - v - a v - w - a w

f a c t or 1 6^{\frac{5}{4}}

f (x) = (cos (2 x - 4))^{3}

f a c t or 25 + (5 tan^{2} (5 x))