Question

(x²-6x)²-8(x²-6x+8)-64
please factorise​

Answer 1

Step-by-step explanation:

put (x sqr - 6x) = a

hence a sqr - 8(a+8) - 64

a sqr - 8a - 128

solving we get

a = 16 or a = -8

put back value for a

x sqr - 6x = 16

x sqr - 6x = -8

solving these two equation gives 4 values for x..thats it