P=−4b 2 +6b−9
Q=7b 2 −2b−5
​P−Q=
Your answer should be a polynomial in standard form.

Answer: the correct answer is 10step-by-step explanation: let the number be n, then the expression becomes,then“twelve more than the quotient of a number and two, decreased by four” iswhen n=4,we substitute 4 whetever we see n to get,we simplify to obtain,we further simplify to get,therefore the correct answer is c.