Question

What are the solutions of the equation?

c2 - 10c = 0

A.
1,
B.
0, –10
C.
0,
D.
0, 10

Answer 1

c2 - 10c = 0
c(c - 10) = 0
so
c = 0
and
c- 10 = 0 then c = 10

answer is D.
0, 10

Answer 2

Option (D) 0, 10

Explanation:

The given equation is C² - 10c = 0

We further solve this equation by taking common factors

C² - 10c = 0

C ( c - 10) = 0

So there are two zero factors of the equation.

C= 0

and ( c - 10) = 0

⇒ c = 10

Therefore, given equation has two solutions C = 0 and C = 10

Option (D) 0, 10 is the answer.