If x - y = 4 and xy = 45, then the value - CUETMOCK

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Home Questions ERD3HE457V

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Algebra

Question:

If x - y = 4 and xy = 45, then the value of x³ - y³ is :

Options:

82

604

151

822

Correct Answer:

604

Explanation:

If x - y = 4

xy = 45

Then the value of x³ - y³

Put x = 9 and y = 5

x³ - y³ = 9³ - 5³

x³ - y³ = 729 - 125 = 604

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