3 years ago

If

ign="absmiddle" class="latex-formula">=36 and xy= -7, findthe value of $x^{2}+y^{2}$

Mathematics

1 answer:

olga_2 [115]3 years ago

4 0

$(x + y)^2 = 36$

$x^2 + 2xy + y^2 = 36$

$x^2+ y^2 = 36 - 2xy = 36- 2(-7)= 36+14=50$

Answer: 50

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