Question 84593
Is the binomial a difference of squares?
{{{9a^2-8b^2}}}
Look at the first term:{{{9a^2}}}.
Take the square root: {{{sqrt(9a^2) = 3a}}} the first term is a perfect square.
Now look at the second term: {{{8b^2}}}.
Take the square root: {{{sqrt(8b^2) = sqrt(8)*b}}} the second term is not a perfect square, so the binomial {{{9a^2-8b^2}}} is not the difference of squares.