Question

\[0.04(x+50)^{2}-3(x+50)+56\]

Answer 1

This becomes \[0.04(x^2+100x+250)-3x-150+56\]
Which simplifies to being \[x^2/25+x+6\]
If you are looking for the solutions for x, they can be found by factoring.
If we factor, we have: ((x+10)(x+15))/25=0
Multiplying both sides by 25 gives us: (x+10)(x+15)=25
Now we can find the solutions for x, which are:
x=15, x = 10.