When x = 4 and y = 5, x^2 +(x+y)

6 answers

16 + 9 = 25
What Abt s = 3 and t = 7, 4st^2 -s^2?
Replace x by 4 and y by 5.

x² + ( x + y ) = 4² + 4 + 5 = 16 + 9 = 25