x^2 + 11x + 18 = x^2 + 9x + 2x + 18 ( ∵ 18 = 9 × 2 ) = x ( x + 9 ) + 2 ( x + 9 ) = ( x + 2 ) ( x + 9 ) Therefore, x^2 + 11x + 18 = ( x ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Factorisation by Common Factors

Factories x2...

Question

Factories
$x^{2} + 11 x + 18$

Open in App

Solution

$x^{2} + 11 x + 18$
$= x^{2} + 9 x + 2 x + 18 (∵ 18 = 9 \times 2)$
$= x (x + 9) + 2 (x + 9)$
$= (x + 2) (x + 9)$
Therefore,
$x^{2} + 11 x + 18 = (x + 9) (x + 2)$

Suggest Corrections

Similar questions

x^{2} - 11 x + 18

3 x^{2} + 11 x + 6

18 + 11 x + x^{2}

x^{2} + 7 x + 6

x^{2} + 11 x + 18

x^{2} + 2 x - 8

x^{2} - 4 x - 5

x^{2} - 8 x + 12

x^{2} - 5 x - 24

\frac{x^{2} + 11 x + 24}{x^{2} - 15 x + 56} \div \frac{x^{2} - x - 12}{x^{2} - 11 x + 28} .

Join BYJU'S Learning Program