Question

Pretty please can someone help

Answer 1

Answer:

Step-by-step explanation:

$2x^{2} + x - 4 = 0$

divide by 2 throughout

$x^{2} + \frac{x}{2} = \frac{4}{2}$

$x^{2} +2 * \frac{x}{4} +( \frac{1}{4}) ^{2} = 2 + ( \frac{1}{4}) ^{2}$

$(x+\frac{1}{4} ^{2} ) = 2 + (\frac{1}{4} )^{2}$