syedahanaahmed syedahanaahmed 21-12-2021 Mathematics contestada 1. Find the product of (2x^2+3x-7) (3x^2-5x+4) 2. Using the identity find the value of 203^2 - 197^2 3. Using the identity solve (2pq-5r) (2pq-3r) 4. Show that (4ab+3b)^2 -(4ab-3b)^2 = 48ab^2. Please answer fast I’ll give u many points and mark u