Question

Find the zero of the polynomial 2x²+7x-4 ​

Answer 1

Step-by-step explanation:

${2x}^{2} + 7x - 4 = 0 \\ = > {2x}^{2} + 8x - x - 4 = 0 \\ = > 2x(x + 4) - 1(x + 4) = 0 \\ = > (2x - 1)(x + 4) = 0 \\ = > (2x - 1) = 0 \: \: or \: \: (x + 4) = 0 \\ = > 2x = 1 \: \: or \: \: x = ( - 4) \\ = > x = \frac{1}{2} \: \: or \: \: x = ( - 4)$

Hence your answer is

${\boxed{x={\frac{1}{2}}\:or\:x=(-4)}}$

Answer 2

Step-by-step explanation:

here is your answer

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