In doing this you can use the factoring method to do this faster. Start by dividing both sides by two to simplify the equation. X^2 now equals 100.
You can move 100 to the other side of the equation so that x^2-100=0. You can now factor and solve using the zero product property.
x^2-100=0
(x+10)(x-10) = 0
x equals 10 and -10.
Answer:
Hold on a sec i cant remember
When completing the square <span>x=9.12311 and </span><span>x=<span>0.876894</span></span>
Is this the expression to simplify?