If x3 + y3 = 152 x + y = 8 Find the va - CUETMOCK

Practicing Success

Start Free Mocks

Follow :

CUETMOCK

Ace Your

CUET Preparation Today

Start Free Mocks

Home Questions V3CTZFJFSJ

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Algebra

Question:

If x³ + y³ = 152

x + y = 8

Find the value of xy.

Options:

25

12

15

18

Correct Answer:

15

Explanation:

x³ + y³ = 152

x + y = 8

(x + y)³ = x³ + y³ + 3xy (x + y)

512 = 152 + 24xy

xy = \(\frac{360}{24}\)

xy = 15

CUET Questions