Question

8x^3 - 24 x^2 - 80 x + 231 = 0 . value of X?

Answer 1

8x³−24x²−80x+231

= 8x³−28x²+4x²−14x−66x+231

=4x²(2x−7)+2x(2x−7)−33(2x−7)

=(2x−7)(4x²+2x−33)

X = 7/2 ,

or

4x²+2x−33=0

x =