Question

√2*(2^x) √2怎么能提取公因式??

题目写错了，应该是2+√2*2^怎么提取公因数

Answer 1

括号x-3括回的平方=x^2减九
括号x-3括回的平方=(x-3)(x+3)
(X-3)²-(x-3)(x+3)=0
(x-3)(x-3-x-3)=0
-6(x-3)=0
x=3

Answer 2

=2(1+(2^(1/2+x)))