connorvoss7345
03.03.2021 •
Mathematics
F.r.e.e p.o.i.n.t.t.s Have I nice day
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Ответ:
me, how are u
Step-by-step explanation:
Ответ:
thanks g
Step-by-step explanation:
Ответ:
2x^2+16x=-18
dividing through by 2 we get:
x^2+8x=-9
but
c=(-b/2a)^2
c=(-8/2)=16
hence
x^2+8x+16=-9+16
x^2+8x+16=7
(x+4)(x+4)=7
(x+4)^2=7
thus getting the square root of both sides
x+4=+/-√7
x=-4+/-√7
x=