factor -90x into primes
-90x = -1 * 2 * 3^2 * 5 * x
Therefore, the prime factorization of -90x is -2 * 3^2 * 5 * x.
that's incorrect
Apologies for the mistake. Let's factorize -90x correctly into primes:
-90x = -1 * 2 * 3 * 3 * 5 * x
-90x = -1 * 2 * 3^2 * 5 * x
Therefore, the correct prime factorization of -90x is -2 * 3^2 * 5 * x. Thank you for pointing out the error.