Question

pls answer this question

Answer 1

Answer:

X = 10

Step-by-step explanation:

the step by step explanations are given above. I think this would be helpful.

Answer 2

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Explanation:

Concept used here :-

• When two values of same bases are multiplied then their power gets added and gets substracted in division.

${2}^{x - 4} \times {4}^{ - 3} = 1$

$= > {2}^{x - 4} = \frac{1}{ {4}^{ - 3} }$

${2}^{x - 4} = {4}^{3} = 4 \times 4 \times 4 = 64$

$= > {2}^{x - 4} = {2}^{6}$

Bases are same on both side ;so it gets cancelled.

now comparing the powers :-

$= > x - 4 = 6$

$x = 10$

Check:-

$= > {2}^{10 - 4} \times {4}^{ - 3} = 1$

${2}^{6} \times \frac{1}{ {4}^{3} }$

$= > \frac{64}{64} = 1$