Question

factorise (x+y)²+11(x+y)+30​

Answer 1

Answer:

$(x + y +6 )(x + y + 5)$

Step-by-step explanation:

It's just simple quadratic , let

$x + y = z$

So equation becomes

${z}^{2} + 11z + 30 \\ \\ = {z }^{2} + 6z + 5z + 30 \\ \\ = z(z + 6) + 5(z + 6) \\ \\ = (z + 6)(z + 5)$

Put value of z and we are done .

Answer 2

Answer:

hiiii

Step-by-step explanation.

let (x+y) be "a"

$a^{2} + 11a + 30\\a^{2} + 5a + 6a + 30\\a(a + 5 ) + 6 (a + 5)\\(a+5)(a+6)$

now replace the value of a

( a + 5)( a + 6)

( x + y + 5 )( x + y + 6 )

HOPE THIS IS UR ANS