Question

Factor out a perfect square for 99

Answer 1

\[b=\sqrt{99}\]

Answer 2

Are you familiar with the list of perfect squares?

Answer 3

1 4 6 etc. ?

Answer 4

not 6 i mean 9

Answer 5

The set of perfect squares are {1, 4, 9, 16...}

Of those, choose the one that is most appropriate to factor out.

Answer 6

I know the list of perfect squares I just struggle with factoring them out

Answer 7

We know \(99 = 9 \times 11\) right? And we know that \(9\) and \(11\) are factors

Answer 8

I thought the factors both had to be perfect squares

Answer 9

Notice it says to factor out "a" perfect square. "a" means "one" so therefore we need at least "one" of the factors to be a square. It didn't say all the factors of 99 had to be a square.

Answer 10

@Hero thank you