7-6 U
SING T
HE
QUADRATIC
FORMULA
ALGEBRA 1
CP
OB JE
CT IVE :
US IN
G T
HE
QU
ADRAT IC
FO
RMU
LA TO
SO
LVE
QU
ADRAT IC
EQ
UAT IO
NS .
WARM UP
Solve 3x2 = 48.
Solve x2 + 5x + 6 = 0 by using the quadratic formula.
Solve 2x2 + 3x - 2 = 0 by using the quadratic formula.
Solve 4x + 2x2 - 7 = 0 by using the quadratic formula. Round solutions to the nearest hundredth.
Solve 3 - 3x2 + 4x = 0 by using the quadratic formula. Round solutions to the nearest hundredth.
HOMEWORK
Pg 346 – 347 # 7 – 18 even, 20
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