We're told x=-5 and y=11 and asked to evaluate a few expressions. That just means substitute these values into the expressions and compute the exact numerical answer.
[tex] 4y-10x = 4(11) - 10(-5) = 44 + 50 = 94[/tex]
Answer: 94
x to the power of 3
[tex]x^3 = (-5)^3 = -5 \times -5 \times -5 = -125[/tex]
Answer: -125
•6y to the power of 2
Probably means
[tex] 6y^2 = 6(11)^2 = 6(121) = 726 [/tex]
Answer: 726
[tex]5(3x+2y) = 5(3(-5) + 2(11)) = 5(-15 + 22) = 5(7) = 35 [/tex]
Answer: 35
•(y-x) to the power of 2
[tex](y - x)^2 = (11 - -5)^2 = 16^2 = 256[/tex]
Answer: 256
