2007-11-17 14:29:41 · 7 answers · asked by lynne 2 in Education & Reference ➔ Homework Help
The number in front of the square root are like terms:
2 + 5 = 7
since youre just adding the square root, you just leave the √11 alone :
7√11
2007-11-17 14:38:15 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Adding/subtracting radicals is similar to adding/subtracting polynomials.
When adding/subtracting polynomials, you can only combine "like" terms, that is, terms that have the same combination of variables and exponents.
i.e. you can add 3x + 5x to get 8x, but you can't combine the terms 3x + 5y, or 3x + 5x^2
When adding/subtracting radicals, you can only combine "like" radicals, that is, terms that have the same "Radicand" which is the number/expression inside the radical symbol.
i.e. you can add 3√x + 5√x to get 8√x, but you can't combine the terms 3√x + 5√y, or 3√7 + 5√6
in your case, since both terms have radicand of 11, you may combine them so 2√11 + 5√11 = 7√11
2007-11-17 14:48:10 · answer #2 · answered by golfingcanuck2001 2 · 2⤊ 0⤋
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2016-10-17 03:33:27 · answer #3 · answered by bolen 4 · 0⤊ 0⤋
treat the square root like a variable.
7sqrt11
2007-11-17 14:34:09 · answer #4 · answered by peachzncream3127 2 · 0⤊ 0⤋
Two square roots of eleven plus five square roots of eleven equals seven square roots of eleven.
2007-11-17 14:37:13 · answer #5 · answered by Tim C 7 · 0⤊ 0⤋
oh wow.... ha ha funny stuff... and the answers is 7 square root 11.....
2007-11-17 14:37:57 · answer #6 · answered by Anonymous · 1⤊ 0⤋
7x(sqrt11)
2007-11-17 14:38:30 · answer #7 · answered by Anonymous · 0⤊ 0⤋