Question

Using identity evaluate : (7.86*7.86-1.14*1.14)/(6.72)​

Answer 1

Answer:

9

Step-by-step explanation:

(7.86)²-(1.14)²/6.72

(7.86-1.14)(7.86+1.14)/6.72

(6.72)(9)/(6.72)

9