Answer:
B x=3
Step-by-step explanation:
12x = 2x^2 +18
Divide by 2
12x/2 = 2x^2/2 +18/2
6x = x^2 +9
Subtract 6x from each side
6x-6x = x^2 -6x+9
0= x^2 -6x+9
Factor
What 2 numbers multiply to 9 and adds to -6
-3*-3 = 0
-3+-3 =-6
0= (x-3) (x-3)
Using the zero product property
x-3 =0 x-3 =0
x=3 x=3
-9x + 1 = 80....subtract 1 from both sides
-9x + 1 - 1 = 80 - 1...simplify
-9x = 79...divide both sides by -9
x = -79/9 <== ur answer
Make sure to multiply everything together, then check it with a calculater.
Hope this works:)
Answer:
Option B is the correct answer
Step-by-step explanation:
B. x2 + y2 = 25
C 22/-3
You use the the equation to plug it in and c is the only fraction that plugs in and equals -27.
