Question

(i) Simplify using identity: (2x + 3) (2x – 5) ​

Answer 1

Answer:

By using this identity.... (x+a) (x+b) =xsq+x(a+b) +ab

• given: x=2x
• a=3, b=-5.....

(2x+3) (2x-5) =2xsq+2x(3-5) +3x-5

=4xsq+2x(-2) -15

=4xsq-4x-15......

___I guess this is the correct✅ answer.....................