Answer: 6x*9
Step-by-step explanation:
open parathesises to
x+1*x-3*x+4*3x+7
combine like terms
6x*9
you can’t simplify further so bam
hope i did this right and it helps :)
Answer:
y = (x + 4)(x - 9)
Step-by-step explanation:
x = {-4, 9}
y = (x + 4)(x - 9)
There are
ways of picking 2 of the 10 available positions for a 0. 8 positions remain.
There are
ways of picking 3 of the 8 available positions for a 1. 5 positions remain, but we're filling all of them with 2s, and there's
way of doing that.
So we have

The last expression has a more compact form in terms of the so-called multinomial coefficient,
