Question

factorise a ^ 4 - 25b ^ 2 - 8a ^ 2 * b ^ 2 + 16b ^ 4​

Answer 1

Answer:

ANSWER

x

4

+y

4

−27x

2

y

2

=(x

2

)

2

+(y

2

)

2

−2(x

2

)(y

2

)−(5xy)

2

=(x

2

−y

2

)

2

−(5xy)

2

=(x

2

−y

2

+5xy)(x

2

−y

2

−5xy)