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MATH / Two reals x and y are such that x−y=4 and x³−y³=28. Compute xy.

Problem

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problem

Two reals xx and yy are such that x−y=4x-y=4 and x3−y3=28x^3-y^3=28. Compute xyxy.
Plain-text mathematical notation (without MathML)
Two reals x and y are such that x−y=4 and x³−y³=28. Compute xy.
Original LaTeX notation
Two reals $x$ and $y$ are such that $x-y=4$ and $x^3-y^3=28$. Compute $xy$.

level

Level 2

type

Intermediate Algebra

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Source and history

task_id
cab84b8b-6508-5e89-98df-1ade0cd5cbc1
task_key
intermediate~5falgebra--test--cab84b8b-6508-5e89-98df-1ade0cd5cbc1
task_revision_id
1
config / split
intermediate_algebra / test

Official source

initial import