find the zero of 4xsquare + 31x - 8
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4x²+31x-8 = 4x² + 32x - x -8
= 4x(x+8) - 1(x+8)
= (4x-1)(x+8)
4x-1=0 or x+8=0
x=1/4 , x= -8 are the zeroes of the given polynomial
= 4x(x+8) - 1(x+8)
= (4x-1)(x+8)
4x-1=0 or x+8=0
x=1/4 , x= -8 are the zeroes of the given polynomial
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