Algebra

Use the quadratic formula to solve. 2z + 4 = 3z^2

Holt McDougal Larson Algebra 1 Common Core Edition page ep10 number 34

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2z + 4 = 3z^2

2z + 4-3z^2 = 3z^2-3z^2

-3z^2+2z+4=0

(-3z )(z ) ( +2)( +4)

(-3z+2)(z+4)=0

Solve:

(-3z+2)=0

-3z+2-2=0-2

-3z=-2

-3z/-3=-2/-3

z=2/3

Solve:

(z+4)=0

z+4-4=0-4

z=-4

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