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drek231 [11]
3 years ago
13

How to complete the square of x^2+8x+15=0

Mathematics
1 answer:
earnstyle [38]3 years ago
6 0

Answer:

x= -3, -5

Step-by-step explanation:

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5(−2) + (2−)2 <br> when =3 and =−2
lyudmila [28]

Answer:

36 is the final value for the equation you posted

Step-by-step explanation:

We are told that = 3 and = −2.

Let's plug these values into the equation.

= (5 ( − 2) + (2 − )^2)

= (5 (3 − 2(−2)) + (2 − 3)^2)

= (5 (3 + 4) + (−1)^2)

= (5 (7) + 1)

= 35 + 1

= 36

7 0
3 years ago
Solve and simplify<br> 3. (y^2-7y-5)-(-3y^2+3y-4)
yKpoI14uk [10]

(y^2-7y-5)-(-3y^2+3y-4)=y^2-7y-5-(-3y^2)-3y-(-4)\\\\=y^2-7y-5+3y^2-3y+4

<em>combine like terms</em>

=(y^2+3y^2)+(-7y-3y)+(-5+4)=\boxed{4y^2-10y-1}

7 0
3 years ago
mount fuji is the tallest mountain in japan and stands 12,389 feet high on average it takes about 6.25 hours to climb to the top
Yanka [14]


12,,389+15



I’m not for sure but used photomath


3 0
3 years ago
V-3 -5 - 315<br> O True<br> O False
xxMikexx [17]

Answer:

True

Step-by-step explanation:

Why true I had that problem and it was true.

7 0
3 years ago
A number is 2/3 if another number. the sum of the numbers is 50. find the numbers
slava [35]

A number is 2/3 of another number.  Both added together equals 50.

One of these numbers consists of three parts, and the other consists of two of those three parts.  So, there are 5 equal parts in total.

Thus we need to divide 50 by 5.  50 divided by 5 equals <u>10</u>.

The first number, which has three parts, is 30.  The second number, which as two parts, is 20.

I hope this makes sense to you.  :D  Good luck in all your studies!

3 0
3 years ago
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