(ײ+4×-21=0)
what are the value of:
1.a=
2.b=
3.c=
Using any method what are the roots?
1.x1=
2.x2=
Perform the indicate operation.
1.x2+x2=
2.x2-x2=

(x²+8×-20=0)
what are the value of:
1.a=
2.b=
3.c=
Using any method what are the roots?
1.x1=
2.x2=
Perform the indicate operation.
1.x2+x2=
2.x2-x2=


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