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Ivanshal [37]
3 years ago
5

Two numbers multiply to be -7 and add to be -6. What are the numbers? Example; 2,3

Mathematics
1 answer:
rewona [7]3 years ago
3 0

<u>Given</u>:

Let the two numbers be x and y.

Two numbers multiply to be -7 and add to be -6.

This can be written in equation as,

xy=-7 and

x+y=-6

<u>Value of the two numbers:</u>

Let us determine the value of the two numbers using substitution method.

Substituting y=-6-x in the equation xy=-7, we get;

x(-6-x)=-7

Simplifying, we get;

       -6x-x^2=-7

   x^2+6x-7=0

(x+7)(x-1)=0

x=-7, 1

Thus, the values of x are x = 1,-7

When x = 1 , the equation x+y=-6 becomes y=-7

When x = -7, the equation x+y=-6 becomes y=1

Therefore, the two numbers are 1 and -7

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Step-by-step explanation:

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6 0
3 years ago
Need help on this to!! thanks &lt;33
Inga [223]
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hope this helps :)
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