Question

find the zero of polynomial [2x^[2] +7x -4

Answer 1

2x^2 + 7x - 4 = 0

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

=> x(x - 1) + 4(x - 1) = 0

=> (x + 4)(x - 1) = 0

=> x = - 4 & 1 are the zeros of the equation

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