Question

（1）若X^a×x^3=X^2a×X^2,求a的值.（2）若2^x=16×32,求x的值.

Answer 1

X^a×x^3=X^2a×X^2

x^(a+3)=x^(2a+2)

a+3=2a+2

a=1

若2^x=16×32

2^x=2^4*2^5

2^x=2^9

x=9