Solve for check if you have the same answer as mine

15 Part A

You use the FOIL rule to get (x+6)(x+19) = x^2 + 25x + 114. So it appears you're a bit on the right track, but you forgot to multiply 6 and 19 to get 114.

That polynomial represents the area of the pool plus the area of the deck around the pool. The area of the pool only is x(x+13) = x^2 + 13x.

Subtract the two polynomials to get

(x^2 + 25x + 114) - (x^2 + 13x)

x^2 + 25x + 114 - x^2 - 13x

(x^2 - x^2) + (25x - 13x) + 114

0x^2 + 12x + 114

0 + 12x + 114

12x + 114

Therefore, the area of the deck only is represented by the expression 12x+114

15 Part B

x = width of the pool

Plug x = 13 into the expression we found for part A

area of deck only = 12x + 114

area of deck only = 12*13 + 114

area of deck only = 156 + 114

area of deck only = 270

answer: 1722

step-by-step explanation:

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.

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled