The value of polynomial 6x²-7x-3, when x=-1 is
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Answers
Answered by
2
Answer:
Here, f(x)=6x
2
−3−7x
=6x
2
−7x−3
=6x
2
−9x+2x−3
=3x(2x−3)+1(2x−3)
=(2x−3)(3x+1).
Then, f(x)=0⟹2x−3=0 and 3x+1=0.
Therefore, 2x=3 and 3x−−1.
That is, x=
2
3
, x=
3
−1
.
Answered by
17
Answer:
☑6x²-7x-3
= 6 (-1)² - 7(-1) - 3
= 6 + 7 - 3
= 10
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