Tina used 10 1/2 yards of yarn to make three yarn dolls. She used 4 1/2 yards of yarn for the first doll and 2 1/9 yards for the
2 answers:
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First of all, move all terms to the same side:
You can factor an x, which means that is a solution:
This expression is further factorizable if the quadratic equation has any solution. Using the quadratic formula, we can find that they are
So, we have