Question

(3b+2) (5b-4) -(b-5) (3b+2)​

Answer 1

Answer:

(3b+2) (5b-4) - (b-5) (3b+2)

$(15 {b}^{2} - 12b + 10b - 8) - (3 {b}^{2} + 2b - 15b - 10)$

$15 {b}^{2} - 2b - 8 - 3 {b}^{2} - 2b + 15b + 10$

$12 {b}^{2} + 11b + 2$

Answer 2

Answer:

(3b+2) (5b-4) -(b-5) (3b+2)

(15b²-12b+10b-8)-(3b²+2b-15b-10)

(15b²-2b-8)-(3b²-13b-10)

15b²-2b-8-3b²+13b+10

12b²+11b+2=0

12b²+8b+3b +2=

12b²+3b+8b+2=0

3b(4b+1)+2(4b+1)=0

3b+2= 0 4b+1=0

b= -2/3 b= -1/4