Respuesta :
y = x² + 2x - 8
which two numbers add up to 2 and multiply to -8?
-2 and 4
so rewrite the expression using the above;
(x - 2)(x + 4)
x = 2, -4
so the zeros are 2 and -4.
hope this helps, God bless!
which two numbers add up to 2 and multiply to -8?
-2 and 4
so rewrite the expression using the above;
(x - 2)(x + 4)
x = 2, -4
so the zeros are 2 and -4.
hope this helps, God bless!
Answer:
x = 2 and ( -4)
Step-by-step explanation:
We have to find the zero factors of the given equation
y = x² + 2x - 8
for zero factor we will put y = 0
0 = x² + 2x - 8
0 = x² + 4x - 2x - 8
0 = x (x+4) - 2(x + 4)
0 = (x + 4) (x - 2)
So zero factors will be
x + 4 = 0
x = -4
( x-2) = 0
x = 2
Therefore, x = 2 and ( -4) will be the zeros of the given equation.