Question: Math

-21 = 15 - 2z^2

Holt McDougal Larson Algebra 1 Common Core Edition page 597 number 24

In Math | Asked by Dee Dee
Asked from the Algebra study pack
Answers

-2z^2+15=-21

-2z^2+15-15=-21-15

-2z^2=-36

-2z^2/-2=-36/-2

z^2=18

z = 3 sqrt(2)
CherieS | 611 days ago