What is #(2x^2+x-1)+(7x^2+4x-3)#?

1 Answer
smendyka
Nov 7, 2016

#9x^2 + 5x - 4#

Explanation:

Step 1) Remove terms from parenthesis
Step 2) Combine like terms

#(2x^2 + x - 1) + (7x^2 + 4x - 3) =>#

#2x^2 + x - 1 + 7x^2 + 4x - 3 =>#

#2x^2 + 7x^2 + x + 4x - 1 - 3 =>#

#(2 + 7)x^2 + (1 + 4)x - 4 =>#

#9x^2 + 5x - 4#

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