Answer:
D
Step-by-step explanation:
x²-4x-12≤0
x²-6x+2x-12≤0
x(x-6)+2(x-6)≤0
(x-6)(x+2)≤0
x=6,-2
∴ value of x lies between -2 & 6
X(5x-2) thats how you factor
(5x-12)^2
Square factor of 25 is 5.
Square factor of 144 is 12.
Hope this helps. I didn't understand what to do with it.
The set of all months that contains less than 31 days is; {February, April, June, September, November}.
<h3>What is the set of all months that contain less than 31 days?</h3>
It follows from the task content that the set whose elements are to be determined is characterized by containing less than 31 days.
On this note, it follows that the elements of the set are; February (28/29 days), April (30 days), September (30 days), June (30 days) and November (30 days).
Read more on sets;
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Answer is x=-3, -1. You have two x values because they are broken down into two equations
