X2+3x+x+3=x(x+1)+3(x+1)=(x+3)(x+1)
x + x + 1 + x + 2 + x + 3 = -144x + 6 = 144x = 8x = 2
x + 3 + 10 = x + 13
x+3-x= x-x+3 = 3
(x + 3)(x + 3)
It is 123.99
6
When x = 3, 3 plus x = 6.
X2+3x+x+3=x(x+1)+3(x+1)=(x+3)(x+1)
x = 0
9
x + x + 1 + x + 2 + x + 3 = -144x + 6 = 144x = 8x = 2
x + 3 + 4x = 13 3 +5x = 13 -- combine like terms 5x = 10 -- subtract 3 x = 2 --- divide by 5 "x" equals two
x + 3 + 10 = x + 13
X 3 plus x-142 plus x is an equation equal to x3+2x-142.
x(x + 3) + 3(x + 3) = x2 + 3x + 3x + 9 = x2 + 6x + 9 = (x + 3)(x + 3) = (x + 3)2
Yes. According to the commutative property of addition: x + 3 = 3 + x