We have,x2 – 36Which is,= (x)2 – (6)2By using the formula a2 – b2 = (a + b)(a – b)We get,x2 – 36 = (x)2 – (6)2= (x + 6)(x – 6)

Q1 of 137 Page 100

Factories:
x² – 36

We have,

x² – 36

Which is,

= (x)² – (6)²

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

We get,

x² – 36 = (x)² – (6)²

= (x + 6)(x – 6)

Factories:

ab(x² + y²) – xy(a² + b²)

Factories:

x² – x(a + 2b) + 2ab

Factories:

4a² – 9

Factories:

81 – 49x²

Factories:x2 – 36