Question
Asked Nov 19, 2019
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solve system of equations using substitution method. 

x+y=-6

xy=-40

 

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Expert Answer

Step 1

The given system of equation is as below.

x + y = – 6  ….(i)

xy = – 40    ….(ii)

Step 2

Isolate y from equation (ii)

40
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40

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Step 3

Substitute this value of y in the eq...

40
-6
40
-6
x
x
x2-40
-6
x2-406x
x6x-40= 0
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40 -6 40 -6 x x x2-40 -6 x2-406x x6x-40= 0

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Tagged in

Math

Algebra

Equations and In-equations