Question

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

Answer 1

hope this helps you....

Answer 2

Step by step solution :

Step 1 :

Equation at the end of step 1 :

(0-(3•(a+b)))+(4•(2a-3b)•(2a-b))

Step 2 :

Equation at the end of step 2 :

(0-(3•(a+b)))+4•(2a-3b)•(2a-b)

Step 3 :

Equation at the end of step 3 :

(0-3•(a+b))+4•(2a-3b)•(2a-b)

Step 4 :

Final result :

16a2 - 32ab - 3a + 12b2 - 3b

hope its helpful for you.