Answer:
(x +12)^2 - 6
Step-by-step explanation:
d/dx x^2 + 24x + 138 = 2x + 24
when 2x + 24 = 0, the gradient = 0
x = -12
f(-12) = -6
therefore we have (x +12)^2 - 6.
a) The halfway number is .
b) The ascending order is ,and .
<u>Step-by-step explanation:</u>
a)Halfway number is otherwise Middle number.
The halfway number of two numbers = .
The halfway for and = .
=.
= .
∴Halfway =.
=
Fraction 1/6. Decimal .6 or 1.6