A number x increased by 6 and the the sum is doubled
1 answer:
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Answer:
Step-by-step explanation:
subtract the functions as follows:
s(x) - r(x) = (2x+1) - (-x2 +3x)
expand the 2nd bracket by multiplying it by the negative 1 outside
= 2x + 1 + x2 - 3x
= x2 - x + 1
Voila!