Question

factorise a^2+12a+27​

Answer 1

Answer:

$<font color = "red">$

${a}^{2} + 12a + 27 \\ \\ ⇒{a}^{2} + (9 + 3)a + 27 \\ \\⇒ {a}^{2} + 9a + 3a + 27 \\ \\ ⇒a(a + 9) + 3( a+ 9) \\ \\⇒ ( a+ 9)( a+ 3)$

Answer 2

$\huge\red{Answer}$

Given :

• A quadratic equation a² + 12a + 27

__________________________

We have to split the middle term in two parts such that its product is equal to 27

__________________________

a² + 12a + 27

= = > a² + 9a + 3a + 27

= = > a ( a + 9 ) + 3 ( a + 9 )

= = > ( a + 3 ) ( a + 9 )

= = > a = -3 , -9

$<marquee direction= "right"> Leave a like :)$