Question

Find the solutions to the equation.

begin equation . . . x raised to the second power, plus 2 times x, minus 3 . . . equals . . . 0 . . . end equation

A
x equals 1, comma, x equals 3

B
x equals negative 1, comma, x equals 3

C
x equals 1, comma, x equals negative 3

D
x equals negative 1, comma, x equals negative 3

Answer 1

Answer:

c

Step-by-step explanation:

x²+2x-3=0

by splitting middle terms,

⇒x²+3x-x-3=0

⇒x(x+3)-1(x+3)=0

⇒(x+3)(x-1)=0

on comparing terms with 0

x+3=0

x=-3

and x-1=0

x=1

x=1 and

x= negative 3