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