No products in the cart.

Factorize using identity: a) 27x³+ 125³ …

CBSE, JEE, NEET, CUET

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Factorize using identity: a) 27x³+ 125³ b) 9x²+6xy+y² c) 27x³+y³+ z³-9xyz
  • 2 answers

Sartaj Ahmad 3 years, 8 months ago

(a) 27x³+ 125³ =(3x)³+ 5³ =(3x+5) {(3x)²+ 5²-(3x)(5)} =(3x+5)(9x²+ 25-15x) (b) 9x²+6xy+y² =(3x)²+2(3x)(y)+y² =(3x+y)² (c) 27x³+y³+ z³-9xyz =(3x)³+(y)³+ (z)³-3(3x)(y)(z) =(3x+y+z){(3x)²+y²+y²-3xz-yz-3xz)} =(3x+y+z(9x²+y²+y²-3xz-yz-3xz)

Deepanshu Kumar Garg 3 years, 9 months ago

Help
http://mycbseguide.com/examin8/

Related Questions

0.BAR(083)
  • 0 answers
24x-42(36+99)=3
  • 0 answers
Changed
  • 0 answers
Cot2A-1/sin2A+1=0
  • 0 answers
(sin47/cos43)2+(cos43/sin47)-4 cos 2 45
  • 1 answers
Represent 2+root2 and 3+root2
  • 0 answers
Chapter 2
  • 1 answers
(98) ^1/2
  • 2 answers

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Download myCBSEguide App