Question

5(3x+1)²+6(3x+1)-8=0

Answer 1

Answer:

Let (3x+1) be a.

According to the question,

$= > 5 {a}^{2} + 6a - 8 \\ = > 5 {a}^{2} + 10a - 4a - 8 \\ = > 5a(a + 2) - 4(a + 2) \\ = > (5a - 4)(a + 2)$

Putting a= (3x+1), we get.....

$= > (5(3x + 1) - 4)(3x + 1 + 2) \\ = > (15x + 5 - 4)(3x + 3) \\ = > 3(x + 1)(15x + 1).$

HOPE THIS HELPS YOU!! ✔️☺❤✌

Answer 2

Answer:

5(3x+1)^2 + 6(3x+1) -8 =0

5(9x^2 +6x +1) + 18x+6 -8 =0

45x^2 +30x+5 +18x -2 =0

45x^2 +48x+3 =0

3(x+1) + (15x+1)