Question

expand: (2a-3) (2a+1) (2a-5)​

Answer 1

Answer:

ans 4 a 3-5 = -8 +1 =7

Step-by-step explanation:

(2a-3)(2a+1)(2a-5)

2a+2a=4a

-3-5=-8

-8+1=7

Answer 2

Answer:

(2a-3) (2a+1) (2a-5)

= 2a( 2a+1) -3(2a+1) (2a+5)

= (4a²+2a -6a -3 )(2a+5)

=2a(4a²+2a-6a-3) +5(4a²+2a-6a-3)

=4a³+4a²-12a²-6a+20a²+10a-30a-15

= 4a³+12a²-26a- 15