6)Simplify and verify the result for the given values (4a 2 -6ab+9b 2 )(2a+3b) ;a=2,b=1 7) Factorise the given expression 9x(6x-5y)-12x 2 (6x-5y)

please help kardo..koi

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

c

-by-step explanation:

it would be c