Math, asked by Namrata01, 1 year ago

plzz solve this:

Factorise:-
y {}^{3}  - 7y + 6

Answers

Answered by abhi569
3


y³ - 7y + 6

=> y³ - y² + y² - 7y + 6

=> y³ - y² + y² - (6 + 1)y + 6

=> y²(y - 1) + y² - 6y - y + 6

=> y²(y - 1) + y(y - 6) - (y - 6)

=> y²(y - 1) (y - 6)(y -1)


abhi569: (-:
abhi569: Nothing, a expression
Namrata01: can u explain how u did this?
abhi569: Means?
abhi569: I just added And subtracted y²
Namrata01: ok
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