Do) 13. Andrea bought a new cell phone. She made an initial payment of $50 to the
2 answers:
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Minus 14 from both sides
x²-4x-14=0
use quadratic formula because we cant factor
for
ax²+bx+c=0
so
1x²-4x-14=0
a=1
b=-4
c=-14
the solutions are
x=2+√3 and
x=2-√3
x²-4x-14=0
use quadratic formula because we cant factor
for
ax²+bx+c=0
so
1x²-4x-14=0
a=1
b=-4
c=-14
the solutions are
x=2+√3 and
x=2-√3
