Like or Unlike?
Like or Unlike?
8x + 3y
Unlike, x & y are different
8x+3x+x
12x
10x+6x(4x-10)+x^2=
10x+24x^2-60x+x = -50x+25x^2
or ; 25x^2-50x
Distribute -8(3x - 10)
24x + 80 (they MUST have + 80, not - 80)
(No Calc) What is half of: 861
430.5
Like or Unlike?
-8xy + -8hy
Unlike x and h are different
Solve:
8x+3y-10x=
-2x+3y or 3y-2x
31x+4x(5x+10)=
31x+20x^2+40x = 71x+20x^2
or; 20x^2+71x
Combine:
12x^2-10x+14x^2-x=
26x^2-11x ; OR; -11x+26x^2
(No Calc) What is half of: 989
494.5
Like or Unlike?
100x^2y + 100x^3y
Unlike x2 and x3 are different
Combine Like Terms:
10(2a + 9b) +10b + 11a + 4b
20a + 90b + 10b + 11a + 4b
31a + 104b or 104b + 31a
57y-3y(10y-1)
= 57y-30y^2+3y=-30y^2+60y
or; 60y-30y^2
8y+9x-3y-9x-5y=
0 (everything cancels out)
(No Calc) What is half of:2560
1280
Like or Unlike?
54as^3z+89s^3az
Like terms - both letters are the same, order does not matter.
Distribute & Combine:
-8x + 7y - 8y - 10(3x + 3y) =
-8x+7y-8y-30x-30y = -8x - 30x = -38x and
7y-8y-30y=-31y so
-38x-31y; OR; -31y-38x
10r-4r(5r-2)+r^2
=10r-20r^2+8r+r^2= -19r^2+18r
or; 18r-19r^2
Distribute and combine like terms
7 + 3(7y - 5) - 20y + 8=
7 + 21y - 15 - 20y + 8
7 - 15 + 8 = 0 so they cancel
21y - 20y = y or 1y
(No Calc) What is half of:1758
879