x = 6 and 2/7
If: 10x+7 = 5x+22 Then: 10x-5x = 22-7 And: 5x = 15 So: x = 3
6.28
x = -3.27 or -6.73
-2-5
x=-8
2x+8x-2=22 10x-2=22 10x+2=+2 10x=24 10/10=24/10 x=2.4
8.1818
Y = X^2 + 10X + 22 set to 0 X^2 + 10X + 22 = 0 subtract 22 from both sides X^2 + 10X = - 22 Now, complete the square by halving the linear term (10), squaring it and adding it to both sides X^2 + 10X + 25 = - 22 + 25 factor the left side, gather terms right side (X + 5)^2 = 3 (X + 5)^2 - 3 = 0 (-5,-3) -------------------the vertx
22+22+28+28=100.
22
44.
22 + 2 = 24