Question

find the factors of the polynomial 5x square - 4 -8x​

Answer 1

Answer:

GIVEN : -

5x^2 - 4 - 8x = 0

=> 5x^2 - 8x - 4 = 0

=> 5x^2 - 10 x + 2x - 4 = 0

=> 5x ( x - 2 ) + 2 ( x - 2 ) = 0

=> ( x - 2 ) ( 5x + 2 ) = 0

i.e ,

x - 2 = 0 & 5x + 2 = 0

x = 2 5x = - 2

x = - 2 / 5