Solve the following system of equations using the substitution method.
2 answers:
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I used Desmos to graph it but here are the coordinates used to graph it in the pictures below.
Answer:
x = ±
Step-by-step explanation:
Given
x² = 20 ( take the square root of both sides )
x = ±
which can be simplified to
x = ± 2
[ ± means plus or minus ]