3 years ago

Expand 2x(8x+5) This is something required for me to learn and I havent got a clue

1 answer:

7 0

16x² + 10x

Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out

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Answer:

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3 years ago

vodka [1.7K]

Answer:

x = -7

Step-by-step explanation:

This is an exponential equation.

$\frac{1}{2}^x=128$

We need to take log(or ln) of both sides and use logarithm property to solve this.

So, let's take ln of both sides, so we have:

$ln(\frac{1}{2}^x)=ln(128)$

Now, we will use this property shown below to further simplify:

$ln(a^b)=bln(a)$

So, we now have:

$ln(\frac{1}{2}^x)=ln(128)\\xln(\frac{1}{2})=ln(128)\\x=\frac{ln(128)}{ln(\frac{1}{2})}\\x=-7$

The value of x is -7

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Step-by-step explanation:

you can relate both the unit in one form

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Tresset [83]

Answer:

i think its 8

Step-by-step explanation:

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