Solve by quadratic equation.
x(x+5)=0​

Algebra Examples Multiply x x by x x . Move −5 - 5 to the left of x x . Use the quadratic formula to find the solutions. Substitute the values a=1 , b=−5 , and c=0 into the quadratic formula and solve for x .

Step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950