What is the value of z so that -9 and 9 are both solutions of x^2+z=103? a.-22 b.3 c.22 d.184

Question

asked May 15, 2017 159k views

1 Answer

Mark Chesney · Answer 1 · 2017-05-21T18:38:56+0000

The answer is C.
x^2 + z = 103x^2 + 22 = 103*Subtract both sides by 22*x^2 + 22 - 22 = 103 - 22x^2 = 81*square root both sides to find x*√x^2 = √81
x = +- 9

What is the value of z so that -9 and 9 are both solutions of x^2+z=103? a.-22 b.3 c.22 d.184

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

No related questions found

Categories

Other Questions