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Mathematics - Permutation & Combination Question with Solution | TestHub

MathematicsPermutation & CombinationMiscellaneous/MixedMedium2 minQB

MathematicsMediumsingle choice

The number of ordered pairs of integers $(x, y)$ satisfying the equation $x^{2} + 6 x + y^{2} = 4$ is

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Answer:

Solution:

$x^{2} + 6 x + y^{2} = 4 \Rightarrow (x + 3)^{2} + y^{2} = 13$ This equation satisfied by ordered pairs $(0, \pm 2) (- 6, \pm 2) (- 5, \pm 3) (- 1, \pm 3)$

Stream:JEESubject:MathematicsTopic:Permutation & CombinationSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: QB

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