Question

factorize 7+10(x+y) -8 (x+y)square

Answer 1

Answer:

[2(x+y) + 1] [4(x+y) - 7]

Step-by-step explanation:

let (x+y) be 'z'

7 + 10z - $8z^{2}$ = 0

$8z^{2}$ - 10z - 7 = 0

8z^{2} - 14z + 4z - 7 = 0

2z(4z - 7) + 1(4z - 7) = 0

(2z + 1)(4z - 7) = 0

put value of z

[2(x+y) + 1] [4(x+y) - 7]