2) Alicia subtracted a number from 5000 and got answer of 1852. What was the number ht she subtracted
2 answers:
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For this case we have to:
Given the quadratic equation of the form:
The roots are given by:
If we have:
We can rewrite it in the following way:
Where:
Where we have:
By definition:
Thus, the roots are given by imaginary numbers:
Answer:
We need to solve for x. Let's try problem b:
Let us first combine line terms. 3x and -x as well as 1 and -7 can be combined. Let's do that:
Since this is true, your answer would be:
All real numbers
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Let's solve for problem c:
Let's isolate x, so subtract 1 from both sides:
Since x can't have a coefficient, divide both sides by 3:
So, only the value of 14 would make this equation true.
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Let's try problem d:
Let's get our whole numbers on the right side. Add 1 to both sides:
Subtract 4x from the right side on both sides:
Since this is not true, your answer would be:
No solution