Question

please solve the question don't spam
(y²+3) (y²+3)
(7/9b² +2) ( 7/9b² +2) ​

Answer 1

Answer:

Step-by-step explanation:

given :- (y² + 3/2) (y² - 3/2)

by using 3rd identity a² - b² = ( a + b ) ( a - b )

here a = y² and b = 3/2

( y² + 3/2 ) ( y² - 3/2 ) = (y²)² - (3/2)²

= y⁴ - 9/4

Answer 2

Step-by-step explanation:

⭐\bigg( y^2 + \dfrac{3}{2} \bigg) \bigg( y^2 - \dfrac{3}{2} \bigg)(y

2

+

2

3

)(y

2

−

2

3

)

⭐

⭐We know that (a + b) (a - b) = a² - b²:

⭐= \bigg(y^2 \bigg)^2 -\bigg ( \dfrac{3}{2} \bigg)^2=(y

2

)

2

−(

2

3

)

2

⭐= y^4 -\dfrac{9}{4}=y

4

−

4

9

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