Question

factorise x^2-6✓2x+18

Answer 1

Solution :

x² - 6√2x + 18

= x² - 3√2x - 3√2x + 18

= x( x - 3√2 ) - 3√2( x - 3√2 )

= ( x - 3√2 )( x - 3√2 )

Or

x² - 6√2x + 18

= x² - 2 × x × 3√2 + ( 3√2 )²

= ( x - 3√2 )²

= ( x - 3√2 )( x - 3√2 )

••••

Answer 2

Answer:

(x - 3✓2x)(x - 3✓2x)

Step-by-step explanation:

x^2 - 6✓2x + 18

= x^2 - 3✓2x - 3✓2x + 18

= x ( x - 3✓2x )  - 3✓2x ( x - 3✓2x )

= (x - 3✓2x)(x - 3✓2x)

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