Weegy: (-5 + 6x7 + 2x5) + (9x7 + 5x5 + 9) =(-5+42+10) + (63+25+9) =47+97 =144
User: Evaluate the polynomial.
x2 + 3y2 + 2xy, when x = 4 and y = 2
User: Simplify:
-12y - 8x - 4x
Weegy: -2xy is the answer
(More) 8
(-5 + 6x^7 + 2x^5) + (9x^7 + 5x^5 + 9)
= 15x^7 + 7x^5 + 4
Added 6/8/2014 3:44:20 PM
This answer has been confirmed as correct and helpful.
8
x^2 + 3y^2 + 2xy, when x = 4 and y = 2:
(4)^2 + 3(2)^2 + 2(4)(2)
= 16 + 3(4) + (8)(2)
= 16 + 12 + 16
= 44
Added 6/8/2014 3:45:49 PM
This answer has been confirmed as correct and helpful.
8
-12y - 8x - 4x = -12x - 12y
Added 6/8/2014 3:46:36 PM
This answer has been confirmed as correct and helpful.