Ask your own question, for FREE!
Mathematics 8 Online
OpenStudy (anonymous):

5sqrtx-7=10 x = -5 x = -3 x = 9 x = 11

OpenStudy (anonymous):

umm none of those. is it written right? \[5\sqrt{x}-7=10\] x would be 289/25

OpenStudy (anonymous):

also we know it cant be a negative number since the negative under the radical would be imaginary

OpenStudy (anonymous):

oh unless x-7 is all under the radical

OpenStudy (anonymous):

yes it is wriitten rite

OpenStudy (anonymous):

its x-7=10

OpenStudy (anonymous):

i see, use parenthesis to clarify next time \[\sqrt{x-7}=(10/5)\] the 10/5 reduces to 2, square each side to remove the square root so: x-7=4 then x=4+7=11

OpenStudy (anonymous):

so x=11

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

ok thank u

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Arriyanalol: i need help
1 day ago 7 Replies 1 Medal
Arriyanalol: CONGRATS to me
1 day ago 8 Replies 2 Medals
Legomaster346: What colleges are good that are near Arab Alabama?
1 week ago 5 Replies 0 Medals
Arriyanalol: i need help
1 week ago 6 Replies 2 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!