How do you simplify #(3x^2 + 3x + 5) + (2x^2 +7)#?

1 Answer
radee
Jan 27, 2016

#5x^2 + 3x + 12#

Explanation:

Since the equation only involves addition operations, you may drop the parenthesis to make it look less complex. However if the equation involves more than 1 operation, make sure to use the PEMDAS rule (Parenthesis, Exponent, Multiplication, Division, Addition, Subtraction).

{Solution]
#(3x^2 + 3x + 5) + (2x^2 + 7)#
#= 3x^2 + 3x + 5 + 2x^2 + 7#
#= 3x^2 + 2x^2 + 3x + 5 + 7#
#= 5x^2 + 3x + 12#

Note that you only need to combine those with like terms (similar coefficients) to solve this particular problem. You should also be careful with the signs of your values especially if the equation involves negative numbers or subtraction operations.

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