Math, asked by animesh0764, 1 year ago

Factorise
$3 \sqrt{3 {a}^{3} } - 5\sqrt{5{b}^{3}} - {c}^{3} - 3 \sqrt{15} abc$

Answers

Answered by QGP

Hey there!

There's a slight error in your question.

The question has been corrected, and appropriately solved.

The identity used is:

x³+y³+z³-3xyz = (x+y+z)(x²+y²+z²-xy-yz-zx)

Hope it helps
Purva
Brainly Community

Attachments:

QGP: This is another possible correction.

animesh0764: bro explain the second line

animesh0764: how it became √9*3

QGP: In second line, I took the 3, which was outside the root sign, and took it into the root sign. SO, 3 becomes sqrt(9)

animesh0764: Ohh

QGP: This sqrt(9) gets multiplied with the sqrt(3) which was already inside

animesh0764: thx bro

QGP: Is it okay now? All doubts cleared?

animesh0764: Yes

QGP: Okay. Good.

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