Two toy robots are having a race. Robot A can go 1/4 meter in 15 seconds. Robot B can go 1 meter in 50 seconds. 1) If Robot A continues at that same speed, how long will it take to go 1 meter? Remember units!

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

step-by-step explanation: