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2 years ago

X^2-121=0 I need help with this question.

Mathematics

2 answers:

balandron [24]2 years ago

7 0

Answer:

x=11

x= -11

Step-by-step explanation:

9966 [12]2 years ago

4 0

Step-by-step explanation:

Here is the solution that you have asked.

When the -121 moves to the other sides it becomes positive.

Similarly, when the square of x moves to the other side it becomes root if the 121 .

Hence, The value of X becomes 11, which is the requires answer.

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What is the value of A when we rewrite 2^x-6 + 2x as A * 2^x?

Leto [7]

Algebraic expressions are expressions that use numbers and variables

The value of A is 65/64

<h3>How to determine the value of A</h3>

The expression is given as:

$2^{x - 6} + 2^x$

Rewrite the expression as:

$2^{x - 6} + 2^x = \frac{2^x}{2^6} + 2^x$

Factor out 2^x

$2^{x - 6} + 2^x = 2^x(\frac{1}{2^6} + 1)$

Rewrite as product

$2^{x - 6} + 2^x = 2^x * (\frac{1}{2^6} + 1)$

The expression to compare with is given as: A * 2^x.

So, we have:

$A * 2^x =2^x * (\frac{1}{2^6} + 1)$

Divide both sides by 2^x

$A =\frac{1}{2^6} + 1$

Take LCM

$A =\frac{1 + 2^6}{2^6}$

$A =\frac{65}{64}$

Hence, the value of A is 65/64

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