Final answer to the problem
$x=30,\:x=-10$
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Step-by-step Solution
How should I solve this problem?
- Choose an option
- Solve for x
- Find the derivative using the definition
- Solve by quadratic formula (general formula)
- Simplify
- Find the integral
- Find the derivative
- Factor
- Factor by completing the square
- Find the roots
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1
Factor the polynomial $x^2-20x$. Add and subtract $\left(\frac{b}{2}\right)^2$, replacing $b$ by it's value $-20$
Learn how to solve quadratic equations problems step by step online.
$x^2-20x+100-100=300$
Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation x^2-20x=300. Factor the polynomial x^2-20x. Add and subtract \left(\frac{b}{2}\right)^2, replacing b by it's value -20. Now, we can factor x^2+-20x+100 as a squared binomial of the form \left(x+\frac{b}{2}\right)^2. We need to isolate the dependent variable x, we can do that by simultaneously subtracting -100 from both sides of the equation. Canceling terms on both sides.
Final answer to the problem
$x=30,\:x=-10$
