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Find the LCM of the given polynomial.
x^2 - x - 12, x^2 - 8x + 16
Last edited by sologuitar (2023-10-03 16:54:33)
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First attempt to factorise each polynomial.
x^2 - x - 12 = (x - 4)(x + 3)
x^2 - 8x + 16 = (x - 4)(x - 4)
note: These two have a common factor (x - 4)
For the lowest common multiple we only need that factor once and both of the others.
Hence (x )(x )(x ) I'll leave you to complete the brackets.
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
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First attempt to factorise each polynomial.
x^2 - x - 12 = (x - 4)(x + 3)
x^2 - 8x + 16 = (x - 4)(x - 4)
note: These two have a common factor (x - 4)
For the lowest common multiple we only need that factor once and both of the others.
Hence (x )(x )(x ) I'll leave you to complete the brackets.
Bob
The LCM is (x - 4)(x - 4)( x + 3) or (x - 4)^2 (x + 3).
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tick
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
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tick
Perfect. You know Bob, math helps me to forget about life for a little bit. I am heavily criticized by friends and family for solving math problems. The main question is this one: WHAT'S THE POINT AT 58?
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Using your grey matter keeps it going. It's like exercise for muscles and a working cardio vascular system but in this case it helps to prevent dementia.
58 seems quite young to me. I passed that long ago.
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
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Using your grey matter keeps it going. It's like exercise for muscles and a working cardio vascular system but in this case it helps to prevent dementia.
58 seems quite young to me. I passed that long ago.
Bob
Yes, you are right. Solving math problems and puzzles keeps the brain functioning. Bob, people just hate to see others doing something they enjoy. I don't see how solving math problems hurts anyone. So, what is my goal? My goal is to continue a self-study of mathematics beyond college algebra.
Courses to study after college algebra:
•Precalculus
•Calculus l
•Calculus ll
•Calculus lll
•Linear Algebra
I then want to do a thorough review of high school geometry including direct amd indirect proofs. A deep review of trigonometry is so in my plans.
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