One of the solutions to x^2-2x-15=0 is x=-3. what is the other solution?

Other solution of the equation is x = 5

Step-by-step explanation:

Given Quadratic Equation,

One of the solution of the given quadratic equation is x = -3

To find: 2nd solution of the equation.

We solve the given equation using middle term split method.

Consider,

x ( x - 5 ) + 3 ( x - 5 ) = 0

( x - 5 )( x + 3 ) = 0

x - 5 = 0 ⇒ x = 5

x + 3 = 0 ⇒ x = -3

Therefore, Other solution of the equation is x = 5

18 cellphones

Step-by-step explanation:

75 x 6= 450

3 x 6= 18