if 2^(x+3) + 2^(x+1) = 320 ,then x = 1. 2 2. 3 3. 4 4. 5

Question

KnowledgeBoat · Accepted Answer

Given, 2(x + 3) + 2(x + 1) = 320 Simplifying the expression: Equating the exponents: ⇒ x + 1 = 6 ⇒ x = 6 - 1 ⇒ x = 5. Hence, option 4 is the correct option.

Mathematics

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

Indices

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If (2⁵ + 0.125)² - (2⁵ - 0.125)² = 2^x, then the value of x is :
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Mathematics

If 2x + 3 + 2x + 1 = 320, then x =2345

Indices

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

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

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

If (2⁵ + 0.125)² - (2⁵ - 0.125)² = 2^x, then the value of x is :
2
3
4
5