175,538 views
43 votes
43 votes
What is (4x ^ 2 + 14x + 6) ÷ (x+3)

User Philip Schlump
by
2.4k points

1 Answer

19 votes
19 votes

Hello!

We have the expression:


(4x^2+14x+6)/(x+3)

Note that all numbers in the numerator are even. So, we can put 2 in evidence, look:


(2(2x^2+7x+3))/(x+3)

Now, let's rewrite 7x as 6x+x:


(2(2x^2+6x+x+3))/(x+3)

The first and second terms are multiples of 2x, so let's rewrite it putting it in evidence too:


(2(2x(x+3)+x+3))/(x+3)

Another term appears twice: (x+3). So, we'll have:


(2(x+3)(2x+1))/(x+3)

Canceling the common factors:


\frac{2\cancel{x+3}(2x+1)}{\cancel{x+3}}=2(2x+1)=\boxed{4x+2}

Answer:

4x +2.

User Richardson Ansong
by
3.2k points