Question

simplify the radical expression
(8+ √11)(8- √11)

Answer 1

hint: \(\bf (a-b)(a+b) = a^2-b^2\)

Answer 2

Since −8√11 and 8√11are like terms, subtract 8√11 from −8√11 to get 0.

(64−11√^2)

is that right @jdoe0001

Answer 3

Way to go @jdoe0001

Answer 4

thats not an option, but 64 + √11

Answer 5

then its that one

Answer 6

hmmm

Answer 7

@ashleychase1 look at jdoe0001's terms, they look alike to yours.

Answer 8

\(\bf ({\color{brown}{ a}}-{\color{blue}{ b}})({\color{brown}{ a}}+{\color{blue}{ b}}) = {\color{brown}{ a}}^2-{\color{blue}{ b}}^2
\\ \quad \\ \quad \\
({\color{brown}{ 8}}+{\color{blue}{ \sqrt{11}}})
({\color{brown}{ 8}}-{\color{blue}{ \sqrt{11}}})\implies ?\)