Solve 4X squared minus X -5 equals zero
1 answer:
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Answers:
15) x = 8,
16) x = 9, ,
17) x = 6, ,
<u>Step-by-step explanation:</u>
15x³ - 119x² - 10x + 16 = 0
So, the possible rational roots are: +/-
Use synthetic division with each one until you find a remainder of zero. I am not going to go through each one because it is too time consuming, however, the first one that works is x = 8
(x - 8)(15x² + x - 2)
Next, factor 15x² + x - 2 using any method
(x - 8)(3x - 1)(5x + 2)
Now, solve for x.
x = 8, x = , x =
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For #16 & 17, follow the same process as above.