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3 years ago

Show all work to solve 3x2 − x − 2 = 0.

Mathematics

2 answers:

AfilCa [17]3 years ago

3 0

Answer:

x=-2/3 and 1

Step-by-step explanation:

3x^2-x-2=0

(3x+2)(x-1)

3x=-2

x=-2/3

x=1

xxMikexx [17]3 years ago

3 0

Answer:

Step-by-step explanation:

3x^2-x-2=0

(3x+2)(x-1)

3x=-2

x=-2/3

x=1

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kotegsom [21]

Answer:

See below (along with unit circle attached)

Step-by-step explanation:

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It really helps to use the unit circle! I've attached it below for your convenience. Keep in mind that a point on the unit circle is defined by $(cos(\theta),sin(\theta))$ where $\theta$ is measured in radians.