Answer
${(-1, 3), (1,3)}$
Work Step by Step
$y=x^2+2$
$y=-x^2+4$
$x^2+2=-x^2+4$
$x^2+2+x^2-2=-x^2+4+x^2-2$
$2x^2=2$
$2x^2/2=2/2$
$x^2=1$
$\sqrt {x^2}=\sqrt 1$
$x= ±1$
$y=x^2+2$
$y=1+2$
$y=3$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 13 - Section 13.3 - Solving Nonlinear Systems of Equations - Exercise Set - Page 948: 23
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