TÌM X BIẾTX −2¿2=2XX+3¿2(¿B)7X(X −2)=(X −2)¿(¿C)8X3−12X2+6X −1=0D X2−9...
Bài 3:Tìm x biết
x −2¿2
=2xx+3¿2
(¿b)7x(x −2)=(x −2)¿(¿c)8x3
−12x2
+6x −1=0d x2
−9− x(2x −3)=0¿e¿x3
+5x2
+9x=−45¿f¿x3
−6x2
− x+30=0¿g¿x2
+16=10x¿2
=2xx+3¿2
(¿b)7x(x −2)=(x −2)¿(¿c)8x3
−12x2
+6x −1=0d x2
−9− x(2x −3)=0¿e¿x3
+5x2
+9x=−45¿f¿x3
−6x2
− x+30=0¿g¿x2
+16=10x¿