-14
step-by-step explanation:
2x2 – 2(x+4)
=2x2-2(5+4)
=4-2×9
=4-18
=-14
you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.
answer: 1722
given: the mass of saturn=
the mass of mercury=
the number of times the mass of saturn is greater than the mass of mercury
hence, the mass of saturn is 1722 times greater than the mass of mercury.