m2+14m+33=?

2 Answers
Jun 25, 2018

m^2+14m+33=(m+3)(m+11)

m=-3,-11

Explanation:

Given:

m^2+14m+33=

If you are asking for the factorization, find two numbers that when added equal 14 and when multiplied equal 33. The numbers 3 and 11 meet the requirements.

m^2+14m+33=(m+3)(m+11)

If you are asking to solve for m, set the equation equal to 0.

m^2+14m+33=0

(m+3)(m+11)=0

Set each binomial equal to 0 and solve.

m+3=0

m=-3

m+11=0

m=-11

m=-3,-11

Jun 25, 2018

m=-3 or m=-11

Explanation:

I'm assuming you want to solve

m^2+14m+33=0

To do so we may use the quadratic formula, but in this case there is a shorter, easier way.

Everytime you have an equation like

x^2-sx+p=0

you can solve it by looking for two numbers x_1, x_2 such that x_1+x_2=s and x_1x_2=p

In this case, s=-14 and p=33.

If we want two numbers to give 33 when multiplied, we can only choose 3 and 11 or -3 and -11. Since we want the sum to be -14, the correct choice is -3 and -11, which are the two solutions.