Solve the quadratic equation 5x2 - 125 = 0.
A. -5
B. 5
C. ±5
D. ±25

Question

Solve the quadratic equation 5x2 - 125 = 0.
	A.	-5
	B.	5
	C.	±5
	D.	±25

stamp · Answer

hint: factor your expression

ryan123345 · Answer

C because when you plug in the numbers it equals 0 :)

stamp · Answer

lol but what if the multiple choice wasn't there...

stamp · Answer

is it game over? because guess and check isnt a good way to "learn" math

ryan123345 · Answer

you arent funny

stamp · Answer

sounds like a headache, why not just factor it and set terms equal to zero

e.cociuba · Answer

Wouldn't there be 2 answers here 5 and -5?

stamp · Answer

$$5x^2-125=0$$$$5(x^2-25)=0$$$$5(x+5)(x-5)=0$$
Identify and solve
(x + 5) = 0
(x - 5) = 0

x = +/- 5

ps you are not funny either

e.cociuba · Answer

Its C.)

stamp · Answer

@e.cociuba The answer choice includes a +/- sign, so +/- 5 = +5, -5

e.cociuba · Answer

Opps srry lol I didn't see tht.