ALGEBRA 1
posted by Lisa on .
ARE THESE ANSWERS RIGHT ?
Express as a trinomial:
(2x3)(x+7)
IS THE ASNWER 2x^2 + 11x  21
WHAT IS THE VALUE OF 2 times 5^2
IS THE ANSWER 2/25
DIVIDE:
x/x^249 divide by 5x^3/x^2 + 9x + 14
IS THE ANSWER x+2/5x^2(x7)

PLEASE CHECK THESE ANSWERS

1. Correct.
2. Correct.
3. Correct! Good job!! 
thanks

x/(x^249) divided by 5x^3/(x^2 + 9x + 14)
= [x/(x^249])*[(x^2 + 9x + 14)/5x^3]
= x/[(x+7)(x7)]*[(x+7)(x+2)/5x^2]
= (x+2)/[5x^2*(x7)]
Yes, #3 is correct. Your #2 requires parentheses. One of the ambiguous versions is correct.