How do you combine like terms in #2( 4x + 6) - ( 3x ^ { 2} - 5x + 18)#?

1 Answer
Apr 12, 2018

Answer:

#-3x^2+13x-6#

Explanation:

Simplify the 2(4x+6). This is equal to 8x+12. Now the equation is #8x+12-(3x^2-5x+18)#. Now distribute the negative in front of the #-(3x^2-5x+18)#. Now the equation is #(-3x^2+5x-18)#. The final equation is #8x+12-3x^2+5x-18#. Combine 8x and 5x to get 13x. Then combine 12 and -18 to get -6. There is nothing to combine #-3x^2# with so that is left alone. The final equation is #-3x^2+13x-6#.