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ValentinkaMS [17]
3 years ago
11

X^2 + 11x + 28 = 0 please help gotta make this longer

Mathematics
1 answer:
RideAnS [48]3 years ago
5 0

Answer:

x= -7       x = -4

Step-by-step explanation:

x^2 + 11x + 28 = 0

What two numbers multiply to 28 and add to 11

7*4 = 28

7+4 =11

(x+7) (x+4) =0

Using the zero product property

x+7 =0   x+4 =0

x= -7       x = -4

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svetoff [14.1K]
Infinitely many ways! 
Suppose you have the fraction 2/d.

<span>Pick </span>any<span> pair of integers a and b where b ≠ 0.</span>
Then 2b-ad is and integer, as is bd so that (2b - ad)/bd is a fraction.

Consider the fractions a/b and (2b - ad)/bd

<span>Their sum is </span>
a/b + (2b-ad)/bd = ad/bd + (2b-ad)/bd = 2b/bd = 2/d - as required.

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3 years ago
How do you write 78,621,087 in expanded notation and expanded form?
Inga [223]
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4 0
3 years ago
Jamie is playing a card gameJamie's score changes by - 12 points for 8 turns in a row. What is the total of jamies score? Plz an
MissTica

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Step-by-step explanation:

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3 0
3 years ago
Help i have no idea how to solve this
ASHA 777 [7]

Answer:

AB =24

Step-by-step explanation:

So, since all the sides are equal, you can just take two of the sides and set em equal to each other to find x and then, solve for AB

4x+8 =6x

8= 6x-4x

8=2x

8/2 =x

x= 4

Now, find AB, which is 4x+8

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5 0
3 years ago
Solve the equation by completing the square
Nana76 [90]

Answer:

s = - 1 ± \sqrt{7}

Step-by-step explanation:

Given

s² + 2s - 6 = 0 ( add 6 to both sides )

s² + 2s = 6

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add ( half the coefficient of the s- term )² to both sides

s² + 2(1)s + 1 = 6 + 1

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s + 1 = ± \sqrt{7} ( subtract 1 from both sides )

s = - 1 ± \sqrt{7}

Thus

s = - 1 - \sqrt{7} , s = - 1 + \sqrt{7}

4 0
3 years ago
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