Question

已知a的x次方=3,a的y次方=2,求a的x+3y次方的值

Answer 1

举野空例
2^3 = 8
2^4 = 16 2^3 = 8
2^(3+4) = 128 = 8*16
2 ^(3+3*4) = 32768 = 128 * 16^2 = 32768

思路是上氏碧面那样, 我时间有限，就不说了 答案肯是歼脊举24 我没仔细算
a^x = 3 a^y = 2 a^(x+3y)
a^(x+y) = 3*2 = 6
a^(x+3y) = a^(x+y) * a^2y = a^(x+y)*2*a^y = 6*2*2=24
错了
a^(x+3y) = a^(x+y) * a^2y = a^(x+y)*(a^y)^2=6*2*2 = 24

OK