How do you simplify #+5x - 7+ 6x ^ { 2} + 2x - 6x ^ { 2} + 5- 7x#?

1 Answer
Pallu
Oct 24, 2017

#=>-2#

Explanation:

#+5x - 7+ 6x ^ { 2} + 2x - 6x ^ { 2} + 5- 7x#

Group the like terms and arrange in descending order of power:

#=> + 6x ^ { 2} - 6x ^ { 2} + 2x + 5x - 7x + 5- 7#

#=> cancel(+ 6x ^ { 2}) cancel(- 6x ^ { 2} )+cancel( 7x) cancel( - 7x) + 5- 7#

# => 5-7 = -2#

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