Question

simplify and evaluate the following expression . the value of different literals are x=5 and y= -3. 5(x2+xy) -3 (xy-x2) +y2
answer is 179​

Answer 1

Answer:

x = 5

y = (-3)

Step-by-step explanation:

5 (x² + xy) -3 (xy - x²) + y²

= 5 x (5)² + (5 x -3) -3 x (5 x -3) - (5)² + (-3)²

= 5 x 25 + (-15) -3 x (-15) - 25 + 9

= 125 - 15 + 45 - 25 + 9

= 110 + 45 - 25 + 9

= 155 - 25 + 9

= 130 + 9

= 139

(HOPE THIS ANSWER IS CORRECT)