Solve by giving square roots:
1) -2v^2=28
2) -10x^2=90

Question

Solve by giving square roots:
1)  -2v^2=28
2)  -10x^2=90

anonymous · Answer

(1) i sqrt14

anonymous · Answer

could you explain the process, please?> I wish to learn

anonymous · Answer

(1) -2v^2=28     --- given
         v^2=-14   --- multiplicative inverse property
         v    =sqrt -14  ---  square root property
         v    = sqrt(14)(-1)    given that sqrt of -1 is i (imaginary number)
         v    = i sqrt 14 ; since 14 has no perfect square factor

anonymous · Answer

and the second one,? Very well explained thank you btw

anonymous · Answer

(2) -10x^2=90
           x^2=-9              (multiplicative inverse property)
             x  =sqrt(9)(-1)      (factor the radicand)
             ;9 is perfect square
             x  = +-3i

anonymous · Answer

Great thanks !

anonymous · Answer

glad to help. .