Which of the following can be a root of 9x5 +ax +b=0,
where a and b are integers
(1) -9
(2) – 5
(3) 1 / 2
(4) 1 / 2
Answers
Answered by
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Step-by-step explanation:
(3-2x)(3+2x) please solve itSimplify 4x³-2x²+5x-1+8x+x²-6x²+7-6x³+7-6x+3-3x²-x³===> 2x²+5x-1+8x+x²+7-6x+3-3x²
Solution
=2x²+5x-1+8x+x²+7-6x+3-3x²
=2x²+x²-3x²+5x-6x+8x-1+3+7
====>7x+9=0
7x=-9
x=-9/7
x=-1.285
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