12(x+2)(x-4)=24(2x+16)
12(x^2-4x+2x-8)=24(2x+16)
12x^2-48x+24x-96=48x+384
12x^2-24x-96-48x-384=0
12x^2-72x-480=0 /:12
x^2-6x-40=0
D=b^2-4ac=-6^2-4*1*-40=36-(-160)=36+160=196-14^2
-b + - VD
X=
2a
x1 = (6+14)/2=20/2=10
x2 = (6-14)/2 = -8/2=-4
OTBET: x=-4 i x=10
12(x+2)(x-4)=24(2x+16)
12(x^2-4x+2x-8)=24(2x+16)
12x^2-48x+24x-96=48x+384
12x^2-24x-96-48x-384=0
12x^2-72x-480=0 /:12
x^2-6x-40=0
D=b^2-4ac=-6^2-4*1*-40=36-(-160)=36+160=196-14^2
-b + - VD
X=
2a
x1 = (6+14)/2=20/2=10
x2 = (6-14)/2 = -8/2=-4
OTBET: x=-4 i x=10