20dneedles
20dneedles
13-02-2018
Mathematics
contestada
How do i complete the square y= X2+8X-4
Respuesta :
tynollette
tynollette
14-02-2018
for x²+bx+c, to complete the square, you add (half of b)²
b=8 in this case, so you add 4², which is 16
x²+8x+16-16-4
y=(x+4)²-20 is the final form.
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