Question

Find the solutions to the equation below.
Check all that apply.
25x2 - 100 = 0

Answer 1

Answer: x=2 & x=-2

Explanation:

Answer 2

x = -2, 2

Explanation:

this one is easy since we can just use squres to factor

(5x -10) (5x + 10)

we want one positive one and one negative one since there is no middle term.

so basically we finde the solution by setting each part of the binomial = to zero

like this

5x - 10 = 0

+ 10 +10

5x = 10

divide by 5 on both sides of the equal sign

x = 2

and

5x + 10 = 0

-10 -10

5x = -10

divide by 5 on both sides of the equal sign

x = -2

therefore the solutions (AKA the zeroes) are x= -2, 2