23. Mr. Russo has 2856 raffle tickets that he will
1 answer:
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Consider the equation .
First, you can use the substitution , then
and equation becomes
. This equation is quadratic, so
.
Then you can factor this equation:
.
Use the made substitution again:
.
You have in each brackets the expression like that is equal to
. Thus,
and the equation is
.
Here and you can sheck whether quadratic trinomials have real roots:
1. .
2. .
This means that quadratic trinomials don't have real roots.
Answer:
If you need complex roots, then
.