(.200-x)2

Would the answer be .400+x2

no, .200-2x

arrrrggggg.

.400-2x

Close. .400 is right and it's -2x

So .400 - 2x

You could make it easier and write
.4 - 2x

How is it 2x?

it couldn't be 2x could it, because the whole thing is squared not times two? The question looks like (.200-x)squared?

You have to write it as an exponent if squared

(.2-x)^2
.04 + .4 x + x^2

To find the answer to the expression (.200 - x)², you need to apply the exponent rule for squaring a binomial.

The formula for squaring a binomial is: (a - b)² = a² - 2ab + b²

So, in this case, a = 0.200 and b = x.

Using the formula, we can find the answer step by step:

(.200 - x)² = (.200)² - 2(.200)(x) + (x)²

= 0.040 - 0.400x + x²

Therefore, the correct answer would be 0.040 - 0.400x + x².