If 4 × 2^(x+3) = 8^(x+1) then 2^x = = 1. 1 2. 2 3. 4 4. 8

Question

If 4 × 2^(x+3) = 8^(x+1)  then 2^x = = 1. 1 2. 2 3. 4 4. 8

KnowledgeBoat · Accepted Answer

Given, ⇒ 4 × 2x + 3 = 8x + 1 Simplifying the expression, Equating the exponents: ⇒ 2 = 2x ⇒ x = ⇒ x = 1. ⇒ 2x = 21 = 2. Hence, option 2 is the correct option.

Mathematics

If 4 × 2^{x + 3} = 8^{x + 1}, then 2^x =
1
2
4
8

Indices

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If 3^x = 3^-x, then (1.2)^x =
0
1
1.2
1.44

If 2^{x + 3} + 2^{x + 1} = 320, then x =
2
3
4
5

If 4^x = 8^y, then x : y =
2 : 3
3 : 2
3 : 4
4 : 3

Mathematics

If 4 × 2x + 3 = 8x + 1, then 2x =1248

Indices

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If 3x = 3-x, then (1.2)x =011.21.44

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If 4x = 8y, then x : y =2 : 33 : 23 : 44 : 3

If 4 × 2^{x + 3} = 8^{x + 1}, then 2^x =
1
2
4
8

If 3^x = 3^-x, then (1.2)^x =
0
1
1.2
1.44

If 2^{x + 3} + 2^{x + 1} = 320, then x =
2
3
4
5

If 4^x = 8^y, then x : y =
2 : 3
3 : 2
3 : 4
4 : 3