PLs answer the question in the picture. I will give a thanks, 5 stars, and BRAINLIEST for a good and applicable answer.
2 answers:
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Answer:
I decided to take a picture since it was easier for me that way. Hope you don't mind. Oh and if my number line isn't clear, the answer is the first number line
Answer:
and
Step-by-step explanation:
Given a polynomial with rational coefficients, its irrational and complex roots would occur in conjugate pairs.
For example, if the roots of a polynomial are 2 + , 3 and 4 - 3i, then 2 -
, and 4 + 3i are also roots of the polynomial.
Therefore, since the given polynomial has rational coefficients and some of its roots are , and -
, then -
and
are also roots of the polynomial.
Answer:
16x² + 8x - 15 = 0
Step-by-step explanation:
Given the roots are x = - and x =
, then the factors are
(x + ) and (x -
) and the equation is
(x + )(x -
) = 0 ← expand factors using FOIL
x² - x +
x -
= 0, that is
x² + x -
= 0 ( multiply through by 16 )
16x² + 8x - 15 = 0