Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 10 - Review - Page 632: 39

Answer

$(1,4)$

Work Step by Step

$y=3x^{2}+5x-4$ Equation $(1)$ $y=3x^{2}-x+2$ Equation $(2)$ From Equation $(1)$ and Equation $(2)$ $3x^{2}+5x-4 = 3x^{2}-x+2$ $3x^{2}+5x-4 - 3x^{2}+x-2=0$ $6x-6=0$ $6(x-1)=0$ $x=1$ Substitute $x$ value in Equation $(1)$ $y=3x^{2}+5x-4$ $y=3(1)^{2}+5(1)-4$ $y=3+5-4$ $y=8-4$ $y=4$ $(1,4)$ satisfies both the equations. So solution is $(1,4)$
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