Question

x^2-25

Answer 1

What do you need to do? Factor?

Answer 2

Sorry, forgot to put that in, it is a quadratic formula

Answer 3

You need to solve the equation x^2 - 25 = 0 using the quadratic formula?

Answer 4

you need to factor the equation

Answer 5

it was not set equal to zero

Answer 6

Ok, you just need to factor the polynomial
x^2 - 25
1. It's a two term polynomial
2. The first term is a square. x^2
3. The second term is a square 25 = 5^2
4. It's a difference (the subtraction)
5. this is a difference of squares.
a^2 - b^2 = (a + b)(a - b)
x^2 - 25 = x^2 - 5^2 = (x + 5)(x - 5)