I did it wrong the first time you're answer is b. 11*11^4
Remember to distribute invibile -1
simlify 2nd part
-(a^2-3a+7)=-1(a^2-3a+7)=-a^2+3a-7
now we have
3a^2+2a-2-a^2+3a-7=
3a^2-a^2+2a+3a-2-7=
2a^2+5a-9
Solution:
Average time per line = total time / total lines
Average time per line = (3x^2 + 2)/(x + 4)
Average time per line = 3x - 12 + (3x^2 + 2)/50 milliseconds
![\quad \huge \quad \quad \boxed{ \tt \:Answer }](https://tex.z-dn.net/?f=%5Cquad%20%5Chuge%20%5Cquad%20%5Cquad%20%5Cboxed%7B%20%5Ctt%20%5C%3AAnswer%20%7D)
![\qquad \tt \rightarrow \:x = -16](https://tex.z-dn.net/?f=%5Cqquad%20%5Ctt%20%5Crightarrow%20%5C%3Ax%20%3D%20-16%20)
![\qquad \tt \rightarrow \: y =4](https://tex.z-dn.net/?f=%5Cqquad%20%5Ctt%20%5Crightarrow%20%5C%3A%20y%20%3D4%20%20)
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![\large \tt Solution \: :](https://tex.z-dn.net/?f=%20%5Clarge%20%5Ctt%20Solution%20%20%5C%3A%20%3A%20)
![\qquad \tt \rightarrow \: 27 + yi = 11 - x + 4i](https://tex.z-dn.net/?f=%5Cqquad%20%5Ctt%20%5Crightarrow%20%5C%3A%2027%20%2B%20yi%20%3D%2011%20-%20x%20%2B%204i)
![\qquad \tt \rightarrow \: yi + x = 11 + 4i - 27](https://tex.z-dn.net/?f=%5Cqquad%20%5Ctt%20%5Crightarrow%20%5C%3A%20yi%20%2B%20x%20%3D%2011%20%2B%204i%20-%2027)
![\qquad \tt \rightarrow \: x + yi = - 16 + 4i](https://tex.z-dn.net/?f=%5Cqquad%20%5Ctt%20%5Crightarrow%20%5C%3A%20x%20%2B%20yi%20%3D%20%20-%2016%20%2B%204i)
By equating both equations we get :
![\qquad \tt \rightarrow \: x = - 16](https://tex.z-dn.net/?f=%5Cqquad%20%5Ctt%20%5Crightarrow%20%5C%3A%20x%20%3D%20%20-%2016)
![\qquad \tt \rightarrow \: y = 4](https://tex.z-dn.net/?f=%5Cqquad%20%5Ctt%20%5Crightarrow%20%5C%3A%20y%20%3D%204)
Answered by : ❝ AǫᴜᴀWɪᴢ ❞
×= 10 and ×= -14
Find x by simplifying both sides of the equation then isolate the variable.