Question

Solve for x.
2x2 – 40x + 200 = 0

Answer 1

5.1

Explanation:

you subtract 200 from 0 which =-200 then you can multiply 2 and 2 which =4 so then it's 4 -40x=-200 then u add -4 and -204 which is -204 so then the equation is -40x=-204 then u divide -204 by -40 to get 5.1 so x = 5.1. not sure if I did this right but whatevs

Answer 2

x = 5.1

Explanation:

You would start by using PEMDAS to multiply 2 by 2 and to simplify the left side of the equation.

4 - 40x + 200 = 0

Then because you can't subtract 40x from 4 or add 40x with 200, you would add 40x onto both sides to get rid of the -40x on the left side.

4 + 200 = 40x

Adding on, you would simplify the left side again to get...

204 = 40x

Then by dividing both sides by 40 to get only x on one side...

204/40 = 40x/40

And simplifying it further you get your answer.

x = 5.1