Math, asked by ravicadiox3267, 9 months ago

(3x+7)^2-y^4 factorise by using identities

Answers

Answered by the2681091
5

Answer:

Identity used is (a+b)(a-b)=a²-b²

Step-by-step explanation:

(3x+7)²-y⁴

=(3x+7)²-(y²)²

=(3x+7+y²)(3x+7-y²)

Answered by devindersaroha43
0

Answer:

Identity used is (a+b)(a-b)=a²-b²

Step-by-step explanation:

(3x+7)²-y⁴

=(3x+7)²-(y²)²

=(3x+7+y²)(3x+7-y²)

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