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The price of a computer after discount was $850. If the discount was 25%, what was the original price of the computer?
1 answer:
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Answer:
The pairs of integer having two real solution for are
Step-by-step explanation:
Given
Now we will solve the equation by putting all the 6 pairs so we get the following
for
for
for
for
for
for
The above all are Quadratic equations inn general form
where we have a,b and c constant values
So for a real Solution we must have
for we have
which is less than 0 ∴ not a real solution.
for we have
which is greater than 0 ∴ a real solution.
for we have
which is greater than 0 ∴ a real solution.
for we have
which is greater than 0 ∴ a real solution.
for we have
which is equal to 0 ∴ a real solution.
for we have
which is less than 0 ∴ not a real solution.
