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