Please Show How U Got The Answer
2007-08-16 12:36:45 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
(sqrt(11) + 2)^2 =
(sqrt(11) + 2) * (sqrt(11) + 2) =
Distributive:
sqrt(11)*(sqrt(11) + 2) + 2*(sqrt(11) + 2) =
Distributive again:
sqrt(11)*sqrt(11) + 2*sqrt(11) + 2*sqrt(11) + 2*2 =
Multiply out values:
11 + 2*sqrt(11) + 2*sqrt(11) + 4 =
Combine like terms:
15 + (2 + 2)*sqrt(11) =
15 + 4*sqrt(11)
2007-08-16 12:40:46 · answer #1 · answered by McFate 7 · 0⤊ 1⤋
sqrt(11+2)^2
=sqrt(13^2)
=13. ANS
2007-08-16 19:40:39 · answer #2 · answered by Anonymous · 0⤊ 2⤋
(a+b)^2 = a^2 + 2ab + b^2
(sqrt11+2)^2 = 11 + 2(sqrt11)(2) + (2^2) = 15 + 4sqrt11
2007-08-16 19:40:24 · answer #3 · answered by Bob R. 6 · 1⤊ 0⤋
15+4*srqt(11)
2007-08-16 19:41:01 · answer #4 · answered by Anonymous · 1⤊ 0⤋
4 answers and they are all different
2007-08-16 19:45:56 · answer #5 · answered by rcbatten 2 · 0⤊ 1⤋