Question

2 x² - 66 - 72 Breaking the middle term​

Answer 1

Answer:

$(x - \sqrt{69} \: ) \: (x + \sqrt{69} \: )$

Step-by-step explanation:

$let \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ {2x}^{2} - 66 - 72 = 0\\ {2x }^{2} - 138 = 0\\ 2( {x }^{2} - 69) = 0 \\ {x}^{2} - 69 = 0 \\ {(x)}^{2} - { ( \sqrt{69} )}^{2} \\ (x - \sqrt{69} )(x + \sqrt{69} )$