Question

7x-2y+5 xy + x 2 for x= -1and y= 2

Answer 1

= - 23.

Explanation:

7x - 2y + 5 xy + x 2

From the question

x = -1

and

y = 2

7(-1) - 2(2) + 5 (-1)(2) + (-1) 2

= -7 - 4 + 5 (-2) - 2

= -7 - 4 -10 - 2

= - 11 - 12

= - 23.