plz solve this for me
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ǫᴜᴇsᴛɪᴏɴ →
4x³ - 8x² - x + 9 is divided by (2x - 1)
ᴀɴsᴡᴇʀ →
4x³ + 8x² - x -2 = 0
4x²( x + 2 ) -1(x +2 ) = 0
(2x -1)(2x +1)(x +2 ) =0
here you see in factors of 4x³ + 8x² -x -2
has not (2x +3) , so, x = -3/2 putting get some value
put x = -3/2
=4(-3/2)³ +8(-3/2)²-(-3/2)-2
=4(-27/8)+8(9/4)+3/2-2
= -27/2 + 18 +3/2 -2
= -12 + 18 -2
= -14 + 18
= 4
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