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prisoha [69]
3 years ago
7

Please help . tjjhhhhhhhh

Mathematics
2 answers:
natka813 [3]3 years ago
7 0

Answer:

19 -  8√3

Step-by-step explanation:

(-4 + √2)^2

= (-4)^2 + 2(-4)(√3) + √3)^2

= 16 - 8√3 + 3

= 19 -  8√3

Crank3 years ago
6 0

Answer:

D

Step-by-step explanation:

note that (\sqrt{3} )² = 3

Given

(- 4 + \sqrt{3} )² = (- 4 + \sqrt{3})(- 4 + \sqrt{3})

Expand using (a + b)² = a² + 2ab + b²

= (- 4 )² + 2(- 4\sqrt{3} ) + ( \sqrt{3} )²

= 16 - 8\sqrt{3} + 3

= 19 - 8\sqrt{3}

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