Find (-15)³ + 8³ + 7³ without working out any cube. | StemPy Lab

Help Contact For teachers and institutes

Mock Tests Classes Groups

StemPy Lab

Learn. Solve. Code the solutions. Test yourself.

Live examsFree mock exams, timed and rankedEveryone starts together, and your score and rank come the moment it ends.See the exams →

Learn

Physics
Chemistry
Mathematics
Biology
Python Programming
Statistics & Data Science
Classes
Groups

Practice

Problems
Quizzes
Mock Tests
Question Sets
Exams
Certificates
Python Labs
AI Practice Generator
Student-Created Tests

Community

Discussions
Resources
Notes
Blog

Account

Dashboard
My Content
Profile
Log in

© 2026 senLearn. All rights reserved.Help About Contact Privacy Policy Terms of Use Refund Policy

Find (-15)³ + 8³ + 7³ without working out any cube. | StemPy Lab

Quizzes
Find (-15)³ + 8³ + 7³ without working out any cube.

MathematicsHardHigh School (9–10)GeneralAlgebra › Algebraic Identities and Factorisation

Created by StemPy Lab

Find $(-15)^3 + 8^3 + 7^3$ without working out any cube.

← All Quizzes

← Multiply 997 by 1003 with the difference of two squares.The polynomial x³ + ax² + bx - 12 has the zeroes 1, 3 and 4. What is b? →

More onAlgebra › Algebraic Identities and Factorisation

Discussion (0)

Log in to join the discussion.

Loading…

More questions on this topic

Factorise x³ + 27.Medium
A square of side a + b is cut into four parts. Which drawing labels the areas of the parts…Medium
a + b = 7 and ab = 10. What is a² + b²?Medium
Expand (2x + 5)².Medium
Factorise x³ - 2x² - 9x + 18. How many zeroes does it have, and what is their sum?Hard

All questions on this topic →

Problems on this topic

Show that if x + y + z = 0, then x³ + y³ + z³ = 3xyz. Use it to find 9³ + (-4)³ + (-5)³.Hard
Factorise 27x³ + 64y³.Medium
Expand (3x + 2y)² and (x - 3y)³.Medium
Use an identity to find each value. 107 × 93; 95²; 101³Easy

All problems on this topic →