A phone company charges you a monthly flat fee of $12 and $0.25 a minute per call. The bill for the month of September is $21. H
1 answer:
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the real solutions for the equation are -
Step-by-step explanation:
=
= 0
We can write 64 as
+
= 0
using the identity ( )
we get,
=
= ....................(1)
solving the quadratic equation ,
=0
solutions of this quadratic equation can be obtained by
let use y for factors
<u /> ..................(2)
from the equation 1 we have,
which gives solution
and from equation 2 we got
so the real solutions for the equation are -