Evaluate X2 - Y2 + 8 When X = 4 And Y = 3, Then Supply The Missing, Number In Each Blank To Complete

Evaluate x2 - y2 + 8 when x = 4 and y = 3, then supply the missing

number in each blank to complete the solution.
x2 - y2 + 8 = 42 - 32 + ____
= 16 - ____ + 8
= ____+ 8
= 15

 

Answer:

x2 - y2 + 8 = 42 - 32 + _8_

= 16 - _9_ + 8

= _7_+ 8

= 15