Question

4ab-5a-12b+15 factories ​

Answer 1

Answer:

4ab-5a-12b+15

= 4ab- 12b -5a +15

=4b (a -3) - 5(a -3)

= (4b-5)(a-3)

Answer 2

Answer:

a=3, b= 5/4

Step-by-step explanation:

4b(a-3)-5(a-3)

(a-3)(4b-5).

so, a=3, b=5/4.

YOU CAN VERIFY THIS BY MULTIPLYING AGAIN.

HOPE IT HELPS YOU .

THANKYOU FOR GIVING AN OPPORTUNITY TO SOLVE.