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tester [92]
3 years ago
6

. If x = 7 + 4√3 then find the value of x2 – 1/x2

Mathematics
2 answers:
Katyanochek1 [597]3 years ago
8 0
Hfudeuxbdjxjdjxxjdjxhjsjdjdjd
inessss [21]3 years ago
5 0

Answer:

you can use mathpapa it works

Step-by-step explanation:

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Apply the distributive property to create an equivalent expression. ( 1 − 2 g + 4 h ) ⋅ 5 =
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Answer:

{(1-2g) + 4h] x 5 =

Step-by-step explanation:

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2 years ago
Simplify the expression, only odds 9-17
Elodia [21]

All exercises involve the same concept, so I'll show you how to do the first, then you can apply the exact same logic to all the others.

The first thing you need to know is that, when a certain quantity multiplies a parenthesis, you can distribute that number to every element in the parenthesis. This means that

a(b+c) = ab+ac

So, a is multiplying the parenthesis involving b and c, and we distributed it: a multiplies both  b and c in the final result.

Secondly, you have to know how to recognize like terms, because they are the only terms you can sum. Two terms can be summed if they have the same literal expression. So, for example, you cannot sum 3x+2y, and neither 5x^2-4x exponents count.

But you can su, for example,

5x-3x = (5-3)x = 2x

or

23xy^2z^6 - 17xy^2z^6 = 6xy^2z^6

So, take for example exercise 9:

1.2(7x-5y) - (10y-4.3x)

We distribute the 1.2 through the first parenthesis:

1.2(7x-5y) = 1.2 \cdot 7x - 1.2 \cdot 5y = 8.4x-6y

And you can distribute the negative sign through the second parenthesis (it counts as a -1 to distribute):

- (10y-4.3x) = -10y+4.3x

So, the expression becomes

8.4x-6y-10y+4.3x

Now sum like terms:

(8.4+4.3)x + (-6-10)y = 12.7x - 16y

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3 years ago
James is 46 years old. This is uncle John's age divided by 2, plus 14 years
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Uncle John is 37 hope this helps out Bc y’all helped me when I needed it
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Da number is n
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3 years ago
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