Question

(x^2 + 7x – 4) + (x^2 + 9) all right i just want make sure i understand

2x^2 + 7x + 5<------answer
2x2 + 7x – 36
2x^2 – 7x – 5
x^2 + 7a – 5

i chose that answer cause
(x^2 + 7x – 4) + (x^2 + 9)
(x^2 + x^2) + 7x + (9-4)
2^2 + 7x + 5

am i right?

Answer 1

you got it right, nice job

Answer 2

yay thanks

Answer 3

you can just drop the parenthesis in the beginning since you are distributing a +1 and then combine like terms