Sarah factored x(to the power of 2)−10x+21
1 answer:
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Answer:
Step-by-step explanation:
convert 1 3/4 into improper fraction: 7/4
we got this from 4 × 1 = 4, then 4 + 3 = 7
the denominator stays the same
we need to subtract the amount that he has left from
the total amount:
make the number 3 have the same denominator as 7/4
convert 5/4 into a mixed number:
the numerator has to be the same, so how many lots of 4 can go into 5 without a remainder? it is 1
4 × 1 = 4
1 is left over, so the numerator is 1
4 + 1 = 5