We have,x3 – 64x= x(x2 – 64)By using the formula a2 – b2 = (a + b)(a – b)We get,x3 – 64x = x(x2 – 64)= x{(x)2 – (8)2}= x(x + 8)(x – 8)

Q11 of 137 Page 100

Factories:
x³ – 64x

We have,

x³ – 64x

= x(x² – 64)

By using the formula a² – b² = (a + b)(a – b)

We get,

x³ – 64x = x(x² – 64)

= x{(x)² – (8)²}

= x(x + 8)(x – 8)

Factories:

20a² – 45b²

Factories:

12x² – 27

Factories:

16x⁵ – 144x³

Factories:

3x⁵ – 48x³

Factories:x3 – 64x