Question

Find (125+95)^2 - 4x125x95 :

• A. 400
• B. 900
• C. 1000
• D. 440

Answer 1

Answer:

B. 900

(125+95)^2 - 4x125x95 =125^2+95^2+2×125×95-4×125×95 =(125-95)^2 =30^2 =900