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anonymous
 3 years ago
solve for x: sqrt x^2x5=5
A. 5
B. 6
C. 6
D. 5, 6
anonymous
 3 years ago
solve for x: sqrt x^2x5=5 A. 5 B. 6 C. 6 D. 5, 6

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1365027513803:dw

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.0your question isa bit confusing do you mean square root oh ok

phi
 3 years ago
Best ResponseYou've already chosen the best response.0what do you get if you square both sides of the equation ?

phi
 3 years ago
Best ResponseYou've already chosen the best response.0how about the right side of the = sign ? what is 5*5 ?

phi
 3 years ago
Best ResponseYou've already chosen the best response.0on the left use the rule that a sqrt times itself makes the square root "go away" in other words, sqrt(x) * sqrt(x) is x no matter how complicated x is.

phi
 3 years ago
Best ResponseYou've already chosen the best response.0All we want is the left side squared. here are some examples sq rt(1+2+3)* sq rt (1+2+3) = 1+2+3 or sq rt(x^2 * 30y)* sq rt (x^2*30y) = x^2*30y what is sq rt (x^2x5) * sq rt (x^2x5) ?

phi
 3 years ago
Best ResponseYou've already chosen the best response.0do you need more examples of what happens when you square a square root ?

phi
 3 years ago
Best ResponseYou've already chosen the best response.0in that case what is sq rt (x^2x5) * sq rt (x^2x5) ?

phi
 3 years ago
Best ResponseYou've already chosen the best response.0I have not solved this, so I don't know off hand. You can learn to solve it or you can try substituting in possible answers and see if they work.
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