Question

find the value of the givenalgebraic expression when x= -1 and y=2
x2-1/2xy+4x

Answer 1

Answer:

-4

Step-by-step explanation:

x^2-1/2xy+4x

-1^2-1/2×(-1)×2+4×-1

1-1-4

-4

Answer 2

(-1)^2_1\2*-1*2+4*-1
=1-1-4
=-4