simplify square root?

0 ⤊

simplify square root?

3√28+√63=

2007-11-28 06:27:51 · 2 answers · asked by robert78gdl 2 in Science & Mathematics ➔ Mathematics

2 answers

(6√7+3√7)
=9√(7)

Hint: 28= 4*7
63=9*7

2007-11-28 06:33:21 · answer #1 · answered by iyiogrenci 6 · 0⤊ 0⤋

Dont really think it can be any simpler. But it can be manipulated of course. 28=7times 4. 4 is a quadratic number. 63=9times 7. 9 is a quadratic number. so it is roots of sevens.

2007-11-28 06:34:46 · answer #2 · answered by Anonymous · 0⤊ 0⤋