Extracting square roots...help!?

0 ⤊

Extracting square roots...help!?

How would I "extract" this?

(r+6)^2 = 13

2007-10-30 04:32:06 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

your best bet would be to multiply out the left side, giving r^2+12r+36=13 then solve the quadratic. you could have two roots one of which won't be shown doing it the above mentioned way.

2007-10-30 04:53:45 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Hi. Square root of both sides, subtract 6. You are left with the value of 'r'. (Negative times negative is positive.)

2007-10-30 11:34:42 · answer #2 · answered by Cirric 7 · 0⤊ 0⤋