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goblinko [34]
3 years ago
9

Answer please please​

Mathematics
2 answers:
sveta [45]3 years ago
7 0

Answer:

What is the question?

Step-by-step explanation:

il63 [147K]3 years ago
4 0
What is the question???
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Solve the equations for all values of x by completing the square x^2+62=-16x
lorasvet [3.4K]

Answer:

x =  \sqrt{2} - 8\\x =  -\sqrt{2} - 8

Step-by-step explanation:

To complete the square, we first have to get our equation into ax^2 + bx = c form.

First we add 16x to both sides:

x^2 + 16x + 62 = 0

And now we subtract 62 from both sides.

x^2 + 16x = -62

We now have to add (\frac{b}{2})^2 to both sides of the equation. b is 16, so this value becomes (16\div2)^2 = 8^2 = 64.

x^2 + 16x + 64 = -62+64

We can now write the left side of the equation as a perfect square. We know that x+8 will be the solution because 8\cdot8=64 and 8+8=16.

(x+8)^2 = -62 + 64

We can now take the square root of both sides.

x+8 = \sqrt{-62+64}\\\\ x+8 = \pm \sqrt{2}

We can now isolate x on one side by subtracting 8 from both sides.

x = \pm\sqrt{2} - 8

So our solutions are

x =  \sqrt{2} - 8\\x =  -\sqrt{2} - 8

Hope this helped!

4 0
3 years ago
What do the unknown factor and quotient represent?
beks73 [17]
Unknown factor is known as the factor that is not understood and not know(you have no idea what the value is)

quotient is the answer of two different numbers called dividend and divisor being divided with each other
7 0
3 years ago
Read 2 more answers
What the geometric mean of 4 and 8​
Arte-miy333 [17]
I think the correct answer is 5.6569
5 0
3 years ago
Solve by factoring <br>7x^2-14x=0
Nataly_w [17]
7x²-14x=0
7x²=-14x
sry idk the rest hope this helped a little bit 
5 0
3 years ago
After a 125% markup and a 10% discount, he the price of a watch is $30.78 before tax. What was the wholesale price?
pickupchik [31]
Fter<span> a </span>125<span>% </span>markup<span> and a </span>10<span>% </span>discount<span> the </span>price<span> of a </span>watch<span> is 30.78 </span>before tax<span> what was the </span>wholesale price<span> - 2929721. ... If an item is $15.20 is increased by </span>125<span>% (34.20) it would be about $34.20 </span>before<span> we subtract </span>10<span>% (3.42)....we arrive at the end </span>cost<span> of </span>$30.78<span>. </span>wholesale price<span>would be 15.20.</span>
4 0
3 years ago
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