Question

split the middle term x2 - √2x - 12
it's X square and root 2x

Answer 1

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x² - √2 x - 12


=> x² - 3√2 x + 2√2 x - 12 = 0


=> x ( x - 3√2 ) + 2√2 ( x - 3√2 ) = 0


=> ( x - 3√2 ) ( x + 2√2 ) = 0


=> x = 3√2


And ,


x = - 2√2




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