Question

please answer this math Questions​

Answer 1

Answer:

9(a) x=2

9(b)x=0

9(c)×=3

Step-by-step explanation:

9 a) 5^2x+1 ÷ 5²=5³

L.H.S.

5^2x+1-2= 5^2x-1...

=5^ 2x-1 = R.H.S. =5³

=>2x-1=3

=>x=(3+1)/2=>x4/2

therefore, x=2...Answer

b)16×2^x+1 =32

L.H.S.

= 2⁴×2^x+1=2^x+1+4=2^x+5...

2^x+5= R.H.S = 32= 2⁵

=>x+5=5=>x=5-5=0

therefore, x=0...Answer

c)81×3^x=3⁷

L.H.S.

=3⁴×3^x=3^x+4...

=3^x+4= R.H.S.=3⁷

=>x+4=7

=>x=7-4=3

therefore, x=3...Answer