Use square root property to solve this equation, explanations are loved :) its: (z+1)^2=17

Question

Use square root property to solve this equation, explanations are loved :)   its:  (z+1)^2=17

slaaibak · Answer

z = sqrt(17) - 1
z= -sqrt(17) - 1

anonymous · Answer

$$1-\sqrt{17},     1+\sqrt{17}$$     Is this the correct way to type it as an answer?

anonymous · Answer

$$(z+1)^{2} = 17$$ You need to get rid of the squared so to do that you take square root on both sides..$$\sqrt{(z+1)^{2}} = \sqrt{17}$$ The square root cancels out the squared leaving you with $$z + 1 = \sqrt{17}$$ Subtract 1 from both sides leaving you with the final answer as $$z = \sqrt{17} - 1$$

anonymous · Answer

I forgot the plus minus sign

anonymous · Answer

do you write it as a negative then you put a comma then as positive? two answers?

anonymous · Answer

$$z = \pm \sqrt{17} - 1$$

anonymous · Answer

awesome! Thanks everyone :3