Question

draw a factor tree for each of the following expressions
4x²y-3xy³

5x³-2z²

Answer 1

Answer:

Step-by-step explanation:

let a , d are first term and common

difference of an a.p

i ) 4th term = 11

=> a + 3d = 11 1 )

ii ) a5 + a7 = 34

=> a + 4d + a + 6d = 34

=> 2a + 10d = 34

divide each term with 2 , we get

a + 5d = 17 2 )

subtract equation ( 1 ) from ( 2 ) , we

get

2d = 6

=> d = 6/2

=> d = 3

substitute d = 3 in equation ( 1 ), we

get

a + 3 × 3 = 11

=> a + 9 = 11

=> a = 11 - 9

=> a = 2

therefore ,

d = 3 , a = 2

Answer 2

Answer:

$answer$

$d \: - \: 3$

$a \: - \: 2$