Question

Solve each of the quadratic equations below. Show your work.

x2 - 16 = 0 and x2 = -2x + 24

Answer 1

is that x^2 or 2x?

Answer 2

First one is easy, just make x^2 equal to 16 and then find the square root of x and 16.
x should be + or -16.
For the second one, you may either use quadratic formula or factoring method.

That's the quadratic formula, with a as the coefficient of x^2 and b as the coefficient of x and c as the constant.Watch out for the signs.