Question

Joy is training for a triathlon. She runs a distance of 2x miles, cycles a distance of (x^2 + 7) miles, and swims a distance of (x - 2) miles. Which simplified expression is equivalent to the total distance, in miles, Joy covers?

x^2 + 3x + 5

x^2 + 3x + 9

3x^2 + 5

3x^2 + 9

Answer 1

@RosieF

Answer 2

so do have an idea how 2 solve this? i do, except i just wanna make sure u know the stuff :)

Answer 3

no

Answer 4

what do i do-- not good on word problems english is not my first lenguaje

Answer 5

okay, so ur gonna need 2 add the polynomials 2x, x^2 + 7, and x - 2

Answer 6

make sense :)

Answer 7

would it be 2x+x^2+7+x-2

Answer 8

ya, just add all of that :)

Answer 9

post what u got when ur done :)

Answer 10

3x+x^2+5

Answer 11

GREAT! :)

Answer 12

now put that in standard form

Answer 13

x^2+3x+5

Answer 14

right! which option has that as the answer?

Answer 15

A:D

Answer 16

thanks!!!

Answer 17

yw :) <3