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Course: UP Class 8th > Unit 4

Lesson 2: Identities 4(b)
Math
UP Class 8th
Identities
Identities 4(b)
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Applications of (a-b)³ identity

Google Classroom

Problem

We're trying to factorize (8x3−y3−12x2y+6xy2) using a suitable algebraic identity.
This is what we get:
(Px+Qy)3
Find the missing values.
P=
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
Q=
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi