SOLUTION: I am not sure of how to calculate thw right answer for these two equations/ 1) S = -10(2)^2+21(2)+7. 2) S = -10(4)^2+21(4)+7.

Question 270847: I am not sure of how to calculate thw right answer for these two equations/
1) S = -10(2)^2+21(2)+7.
2) S = -10(4)^2+21(4)+7.
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
1) S = -10(2)^2+21(2)+7.
2) S = -10(4)^2+21(4)+7.
i think u have these parenthesies out of order if x=2 and x=4 for 2nd problem they should look like this:
now simple order of opperations:() then * then +

________________________

RELATED QUESTIONS
Could someone please tell me if these problems are correct. I am working on a test and I... (answered by Alan3354)

21-[-(3-4)-2]-5 21-[-3+(-4)-2]-5 21-[-7)-2]-5 21-[-7+(-2)-5 21-(-9)-5 21+9-5 30-5... (answered by stanbon)

I worked these two problema and wanted someone to check to see if I have the right answer (answered by stanbon,rfer)

Hello! i tried to solve this one but I am not sure if my answer is correct. Chance of... (answered by funmath)

write the ratio in simplest form. 5 3/5 to 2 1/10= 28/5 to 21/10= 28/5 divide 21/10= (answered by vleith)

Please help I am not sure I am doing these right... Solve each of the equations. Be... (answered by stanbon)

I am trying to factor this equation but my answer is not the same as the answer key. The... (answered by Boreal)

8 2/3 10 + 9 2/7 i understand the lcd is 21, and i converted these... (answered by ewatrrr,MathLover1)

I would be grateful for any help her. I am confused and not sure how to explain. Thank... (answered by MathLover1)