3x^2-17x- 20 and 100=3x^2-17x-20 needed to simplify and find the X if its equal to 100

Mathematics

1 answer:

Vesnalui [34]2 years ago

4 0

Answer:

Factor 3x^2-17x-20, and you get (x + 1)(3 x - 20)

x = 17/6 + sqrt(1729)/6, x = 17/6 - sqrt(1729)/6

Step-by-step explanation:

Factor 3x^2-17x-20, and you get (x + 1)(3 x - 20)

When 3x^2-17x-20 is equal 100

3x^2-17x-20=100

Subtract both sides by 100

3x^2-17x-120=0

Use the quadratic formula

x = 17/6 + sqrt(1729)/6, x = 17/6 - sqrt(1729)/6

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