How do you solve #x^2+5x+6=0# by factoring?
3 Answers
Jul 16, 2018
Explanation:
#"the factors of "+6" which sum to "+5" #
#"are "+3" and "+2#
#(x+3)(x+2)=0#
#"equate each factor to zero and solve for x"#
#x+3=0rArrx=-3#
#x+2=0rArrx=-2#
Jul 16, 2018
Explanation:
we get
using that
we get
so
we get
Jul 16, 2018
Explanation:
Let's do a little thought experiment:
What two numbers sum to the middle term, and have a product of the last term?
After some trial and error, we arrive at
Next, we can set both factors equal to zero to get
Hope this helps!