Question

Розв'яжіть методом підстановки систему рівнянь6) Даю 50 Балов​

Answer 1

{х-у=4

{х²+у²=8

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{х=4+у

{х²+у²=8

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(4+у)²+у²=8

16+8у+у²+у²=8

16+8у+2у²=8

16+8у+2у²-8=0

8+8у+2у²=0

2у²+8у+8=0. |:2

у²+4у+4=0

(у+2)²=0

у+2=0

у= -2

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х=4+(-2)=4-2=2.

Ответ: (2; -2).

Answer 2

Solving the System of Equations using the Substitution Method

To solve a system of equations using the substitution method, we substitute one equation into the other and solve for the variable. Let's solve the given system of equations using this method.

Please provide the system of equations you would like me to solve using the substitution method.