If x²+4y²=40 and xy=6, what will be the value of x+2y?

Anonymous
timer Asked: Feb 4th, 2019
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Question Description

If x²+4y²=40 and xy=6, what will be the value of x+2y? Please explain how you arrived at your answer.

Tutor Answer

Frajosh
School: UT Austin

Attached.

Running head: MATHEMATICS

1

Solving Quadratic Equations
Students Name
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MATHEMATICS

2
Solving Quadratic Equations

Solve the following equation
𝑥 2 + 4𝑦 2 = 40; If xy = 6; Find x + 2y
Solution
6
Make x the subject; so x = 𝑦
6 2

Substitute x in the equation, theref...

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Anonymous
Excellent job

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