A: x= 6+3 squareroot 10 ... Its letter A
I will do the first one only. The second question is done the same way.
Replace every x you see in the function with 2b and do the math.
f(x) = x^2 + 2x + 1
Let x = 2b
f(2b) = (2b)^2 + 2(2b) + 1
f(2b) = 4b^2 + 4b + 1
Did you follow? That's all there is to it.
Answer:
none
Step-by-step explanation:
Because X has the same coefficient on both sides but a different value is being added to it, there cannot be an solution.
9x+3=9x+5
-9x -5
-2=0, which doesnt work so theres no solution
Answer: -4
Step-by-step explanation:
Set up an equation
8x+3=-29
Subtract 3
8x=-32
x=-4
Answer: 15.3 (with a repeating bar over the 3)
