First
23x2+1−1=55−123x2=54Step 2: Divide both sides by 2/3.23x223=5423x2=81Step 3: Take square root.x=±√81x=9 or x=−9Answer:x=9 or x=−9
Second:
−2y3−5=49Step 1: Add 5 to both sides.−2y3−5+5=49+5−2y3=54Step 2: Divide both sides by -2.−2y3−2=54−2y3=−27Step 3: Take cube root.y=(−27)(13)y=−3Answer:y=−3
From Mathpapa.com
